Log Message:
Update to 3.1.3

* Update buildlink3.mk.
* Restrict hack.mk for GCC 3.* only.
* Set LICENSE.

Changelog:

New in Coin v3.1.3 (2010-03-02):
* new:
  - Pickup simage debug instead of release runtime library on Windows
  - SoGetMatrixAction handling for SoTextureUnit
  - Support for rendering quads and triangles with VBOs and glDrawArrays
* bugfixes:
  - Vertex Array rendering fix
  - Binary file import fix
  - Various SoExtSelection fixes
  - OpenGL extension detection fixes
  - glGenerateMipmap robustness fixes
  - Avoid drifting away from the projector's plane in SoTranslate2Dragger
  - SoGLVBOElement updating fix
  - Text rendering fix
  - Notify fix in SoIndexedMarkerSet
  - Vertex attribute fix for quads and polygons
  - SoGetPrimitiveCountAction fix
  - VBO rendering caching fixes
  - setProjectorEpsilon() fix for SbLine/PlaneProjector affecting SoDragger
* build system:
  - Updated autotools to autoconf-2.65, automake-1.8.3, libtool-1.5.26
  - Changed default location for generated HTML documentation
* other:
  - Improved documentation for SoGeo nodes

New in Coin v3.1.2 (2009-10-14):
* bugfixes:
  - removePoint() bugfix for SbBSPTree
  - divide-by-zero fix for SoNurbs
  - Fix SoLazyElement handling in SoPrimitiveVertexCache.
  - Refix NURBS picking according to the GLU specification.
  - ShadowGroup fixes
  - Bugfix for closed extrusions.
  - Bugfix for using SoPrimitiveVertexCache for other actions than SoGL RenderAction.
  - Increase upper limits for creating VBOs/caches.

New in Coin v3.1.1 (2009-09-08):
* bugfixes:
  - Fixed NURBS bugs
  - Fixed some issues in SoIndexedPointSet.
  - Fixed a configure problem which made it impossible to create release builds \ 
on Windows.

New in Coin v3.1.0 (2009-05-27):
* new:
  - shape node classes SoIndexedPointSet, SoIndexedMarkerSet
  - made build configurations available for building without
    manipulators, draggers, and nodekits, for slimmed down Coin
    binaries
  - support in SoRenderManager for superimpositions and multipass
    antialiasing
  - offscreen OpenGL contexts for Mac OS X now uses CGL, instead of
    the deprecated QuickDraw API
  - direct support for non-power-of-two textures if the OpenGL driver
    has it
  - SoOffscreenRenderer::getDC() available under MSWindows for fast
    transfer from internal buffer to Win32 bitmaps / DCs
* bugfixes:
  - font rendering through FreeType library functional again
  - SoQuadMesh rendering for PER_FACE bindings
  - SoCalculator engine's atan2() and dot() were not working properly
  - more robust and more capable SoToVRML2Action
  - node leaks when copying nodekits
  - name-dictionary memory fill (leaks) when copying scene graphs
  - more robust copying of VRML 2 scene graphs
  - ambigious typing under 64-bit MS Windows
  - some array out-of-bounds and other memory access errors in obscure
    corners of the API
  - SoProfilerElement API exported as part of the public DLL API for
    Windows builds
  - SoVRMLText, SoText3 and SoAsciiText's get primitive count operation
  - SoVertexAttribute::copy()
  - SoLineHighlightRenderAction polygon offset set-up
  - SoShadowGroup heeds SoClipPlane
  - handle transparency in all texture units when multi-texturing
  - SoNurbsCurve, picking on rational curves, and corrected for weighted
    coordinates
* optimizations:
  - use a lot less mutex resources for common case scene graphs, by
    using class-wide mutexes instead of per-instance mutexes for shape
    nodes
* build system:
  - C++ exceptions enabled by default
* other:
  - SoVRMLBackground, better depth buffer handling
  - SbString new methods lower() and upper(), for better Open Inventor
    compatibility
  - increased adherence to modern C++ conventions and programming
    practices
  - more robust offscreen GL buffer / context creation
  - various API documentation improvements
  - all environment variables heeded by Coin shown in API documentation

New in Coin v3.0.0 (2008-09-11):
* new:
  - Scene graph performance profiling subsystem
  - SoDepthBuffer node for constrolling Z-buffer settings
  - Shaders: SoVertexAttribute and SoVertexAttributeBinding nodes
  - Shadows: SoShadowSpotLight node
  - SoHeightMapToNormalMap texture conversion engine
  - SoPickStyle: new styles SHAPE_ON_TOP, BOUNDING_BOX_ON_TOP, SHAPE_FRONTFACES
  - New XML-based GL driver feature database for tagging buggy/slow features
    in specific drivers
  - Statechart XML engine (2007-draft based), used to implement examiner viewer
    mode at the Coin level
  - Foreign file format support through SoForeignFileKit w. example SoSTLFileKit
  - Draggers: minTranslation/maxTranslation fields in SoTranslate1Dragger and
    SoTranslate2Dragger
  - OS X: Coin has become more bundle-aware and will loads external libs bundled
    with Inventor.framework or the application bundle (better encapsulation)
  - SoLineHighlightRenderAction and SoBoxHighlightRenderAction now only
    supports one SoSelection node (performance and OIV-compatibility)
  - SoBumpMap will now detect height maps stored as rgb(a)
  - SoRayPickAction picking precision improvements
  - Include SoFieldContainer userdata when doing a deep node copy
  - Anti-aliasing is now done around the center of each pixel
  - Boost.Test-based testsuite
* bugfixes:
  - ATi driver workarounds (VBO rendering related)
  - Fixed SoToVRML2Action Transform handling bug
  - SoTimeCounter now handles frequency == 0.0
  - SoSceneTexture2 now properly restores the previous context
  - Fix for remote rendering in SoGLDisplayList
  - Workaround for nVidia texture format bug
  - SoPathList::uniquify() now properly removes all paths that goes through
    another path, not just one
  - SoVRMLAppearance now checks material on the state
  - SoComposeRotation. Default axis is now (0,0,1)
  - Various SoShadowGroup fixes
  - 3ds loader will no longer normalize the model (still not enabled by default)
  - Workaround for nVidia line pattern bug
  - Fixes for SoVRMLBillboard
  - SoFile-SoSearchAction bugfix
  - Correctly load bold/italic version of fonts with a single ttf file
  - Bugfix for anti aliasing with numpasses > 16
  - New Visual Studio 9 build files and other VS-related fixes
    ... and more

New in Coin v2.5.0 (2007-10-01):
* new:
  - geo nodes: SoGeoOrigin, SoGeoCoordinate, SoGeoLocation, SoGeoSeparator
  - shader nodes: SoVertexShader, SoFragmentShader, SoGeometryShader,
    SoShaderProgram, SoShaderParameter
  - shadow generation: SoShadowGroup, SoShadowCulling, SoShadowStyle
  - new camera node SoFrustumCamera
  - new node SoTextureCubeMap
  - a lot of new SbVec and SbBox classes
  - a lot of new field classes (mostly Vec and Box fields)
  - implemented stubbed SoSimplifyAction,
    added SoGlobalSimplifyAction and SoShapeSimplifyAction as stub classes
  - SoReorganizeAction improvements
  - SoFile:: setSearchOK(), getSearchOK()
  - SoGLRenderAction::setSortedObjectOrderStrategy()
  - SbTypeInfo.h template type information library
* bugfixes:
  - GlobalField cleanup bugfix
  - SoFaceDetail faceIndex bugfix
* optimizations:
  - more rendering optimized with VBOs
  - display list caching tweaks
* build system
  - initial pkg-config support
  - Visual Studio: build .pdb for release builds, tweaked optimization options
  - Visual Studio: doc-generation project

New in Coin v2.4.6 (2007-04-03):
* new:
  - implemented SbViewVolume::getAlignRotation()
  - added support in SoToVRML2Action for SoUnits and SoVRMLTransform
* optimizations:
  - fixed pathlist traversals, affecting most notably rendering w/transparency
    DELAYED_BLEND/ADD mode
  - added lazy shapehints evaluation to VRML97 rendering
  - avoid probing glGetError() much (unless specified) since it kills
    performance in certain remote rendering situations
  - some optimizations in the reading of ascii vrml/iv files
* bugfixes:
  - SoVRMLBillboard axis-of-rotation bugfix
  - global field and SoUnknownNode I/O fixes
  - SbDPMatrix::multVecMatrix(SbVec4f) bugfix
  - implemented missing notification-filtering in SoSwitch/SoVRMLSwitch
  - plugged more memory leaks
  - set same default depth function as SGI Inventor
  - VRML97 TimeSensor bugfix
  - VRML97 Billboard bugfixes
  - SoGroup offpath traversal bugfix
  - fixed AMD64 warning issues
* other
  - many Visual Studio build files improvements
  - remove the Inventor/system/gl.h configure-run dependency

New in Coin v2.4.5 (2006-04-30): The Better-Than-Doing-Tax-Returns Release
* bugfixes:
  - fixed 2D font "_" character
  - minor axis MIDDLE (i.e. center) justification for VRML97's
    FontStyle and Text nodes did previously not work as expected
  - policy change on normalizing null-vector warning
  - improved Inventor V1.0 import
  - improved cleanup code (plugged many static one-off leaks)
  - fixes for nurbs, VRML97 protos, routes...
  - and a multitude of other bugfixes (see docs/ChangeLog.v2.4.5)
* optimizations:
  - internal changes wrt use of vertex arrays and vertex buffer objects
* build fixes:
  - upgraded to new version of libtool
  - universal binaries support for Mac OS X
  - misc TGS compatibility fixes
  - added project files for Visual Studio 8 (2005)