small speedup of CGAL (according to CGAL tests)
Add some additional minkowski2d test cases
Fix a problem with the 2D Minkowski implementation

Polygons were clipped too soon, resulting in numerical robustness errors
which could create cracks in the resulting geometry. This patch corrects
the problem by postponing Clipper's union operation until the Minkowski
insides are filled. The result is also a net reduction of the number
of Clipper operations.
Editor: Fix bug where replaceAll could enter an infinite loop
Merge pull request #611 from OskarLinde/minkowski2_bug

Minkowski2 bug
Merge pull request #628 from OskarLinde/ui_find

Editor: Fix bug where replaceAll could enter an infinite loop
Merge pull request #625 from openscad/piliko0

small speedup of CGAL (according to CGAL tests)
Create freenode-verification.txt
removed temporary file
Add implementation of text() module.
Add new libraries to the build and check scripts.
Add debian package dependencies.
Add libraries to qmake config.
Skip build in case the library is already installed.
Patch Qt when building on Mavericks/XCode 5.0.1.

This is a workaround for compilation problems in that
environment:

- Disable tiff plugin which fails with duplicate symbol
  errors when linking. This is available as configure option.

- Disable core-wlan which fails compilation with lots
  of errors. This needs to patch the qmake config file.
Add new libraries to MacOS X build script.

Also move some general stuff into a separate script so
it can be shared by the MacOS X and the Linux build.
Include common script for Linux builds.
Add first set of test cases for text().
Add test cases for text alignment and text direction.
Fix dependency build script on MacOS X.