Log Message:
Version bump

All changes between 0.3.0 and 0.3.1:
* Fixed commandline function invocation
* Fixed QSA using bad qmake
* Fixed --enable-release option in configure script
* Xpdf code cleanup (removed unused files)
* Fixed possible unicode string handling errors
* Added checks for QTDIR and QMAKESPEC to ./configure
* Compilation fixes for gcc-4.3 (thanks to Martin Michlmayr for patch)
* Added german translation (thanks to Andreas Mantke)
* Updated Xpdf to 3.01pl2 (some security bugs were fixed)
* Fixed unicode file name handling
* LC_ALL and LC_MESSAGES env. variables are now processed, not only LANG
* .qm files are now (re)compiled when running qmake in src/gui
* Setting units in options now does not break when changing locale
* Added settings to change initial focus
* Added tooltips for line width, font face and font size selection boxes
* In configure, --enable-release is turned on by default
  (use --disable-release to turn it off)
* Files README, Changelog and doc/AUTHORS are now installed
  to documentation directory with "make install"
* Fixed about window not showing all text if font size is too big
* Fixed icon cache freeing data prematurely, causing ineffectivity
  and possibly crashes
* Minor bugfixes