Log Message:
Update to pcb-20091103

========================================================================
Release Notes for PCB snapshot 20091103
========================================================================
This release represents almost 200 commits and as such this summary
clearly is not complete.  See the ChangeLog file for the complete list
of changes.

- [feature] Add attributes to layers
- [bugfix]  Remove memory leak in attributes
- [bugfix]  Avoid layer buttons getting confused (GTK)
- [bugfix]  Fix dereference bug in hid_find_action()
- [feature] Speed up some polygon operations
- [bugfix]  Don't let DRC change the grid setting
- [bugfix]  Correct URL's in some dialogs and output
- [feature] Add filters to load file chooser dialog (GTK)
- [bugfix]  Avoid segfaults with png HID with newer versions of libgd
- [bugfix]  Don't disperse locked elements
- [feature] Added experimental topological autorouter
- [feature] Added the beginning of a testsuite.
- [docs]    Document FreeRotateBuffer()
- [docs]    Add some additional notes on the usage of the existing
            autorouter
- [feature] Add --png-bloat option
- [bugfix]  Fix several bugs found with valgrind
- [bugfix]  Improve the pre-install wrapper script
- [bugfix]  Several fixes to the autorouter
- [feature] Allow quoted strings and escaped characters in action
            arguments
- [footprints] Add missing INDC3216M, remove duplicated RESC3216M
- [feature] Added the ability to customize mouse events via gpcb-menu.res
            in the GTK HID.
- [feature] Added the ability to use mod1 (alt)(option) in
            HIDs.  Useful on OSX.
- [bugfix]  Fix compilation issues on centos
- [bugfix]  Make the detection of tools and build system around
            building the documentation be more robust.  Users should
            not be worrying about --disable-doc or --enable-maintainer-mode
            anymore
- [footprints] Add T018, T039, fix pinout of T092 to match JEDEC
- [bugfix]  Speed up rendering of DRC violation previews under GTK
- [bugfix]  Fix some crashing bugs related to polygons and thindraw mode
- [feature] Added a DRC refresh button
- [bugfix]  Fix some pango markup in the GTK DRC dialog
- [bugfix]  Fix cursor warping on flipped boards (GTK)
- [feature] Added preview images in the DRC violations window (GTK)
- [feature] Add a DrcViolationType structure and add hooks to allow HID's to use this
- [bugfix]  Fix some polygon memory leaks
- [feature] Add an API for registering actions with a context to support scripting
            languages like GPMI.
- [bugfix]  Fix a bug with the Report(NetLength) action and NULL pin/pad names
- [bugfix]  Allow exporters to work with hairlines (width of 0)
- [tools]   Increase autoconf version to 2.60 since we were using some features of it
- [bugfix]  Fix a number of polygon related issues
- [bugfix]  Fix a number of gcc warnings
- [feature] Don't display undocumented options in help output.  This helps
            the transition when deprecating an option.
- [feature] Add outline mode for photo-mode exporting
- [footprints] Put the mark on pin 1 for axial footprints to make them more likely
               to fall on grid
- [bugfix]  Fix flipping of arcs
- [bugfix]  Fix parsing of old-syntax arcs
- [bugfix]  Include explicit text/lines on silk layers in the assembly drawing output
- [feature] '--ben-mode' has been renamed to '--photo-mode'
- [bugfix]  Fix some crashign bugs on boards with a large number of rats
- [bugfix]  Fix an off-by-one bug in the GTK netlist window
- [docs]    Add getting started guide
- [feature] Add support for parsing suffixes on numbers ("um", \ 
"mm", "in", "mil")
- [bugfix]  Fix some configure/build issues when cross compiling
- [bugfix]  Fix some improperly used automake conditionals
- [bugfix]  Fix some uninstall of shortcuts issues under windows Vista
- [feature] Add additional crosshair shapes
- [bugfix]  Various windows build script improvements