* Cleaned up FontAtlas and completed documentation
* Cleaned up TextRenderer, added customizable font file, added exception handling
* Added two OpenSource default fonts (FreeSans and Bitstream Vera Mono)

* Added freetype2 as external library
* Drafted FontAtlas class as simple interface to render text using OpenGL

refs #386

refs #386

Builds and runs fine so far, but no elaborate testing done yet. Compiler throws a bunch of C4275 warning, since sigslot:has_slots<> is used in exported classes but is itself not exported. While this is no direct problem for campvis-internal builds, it should still be fixed some time.

refs #377

* Moving to Apache 2.0 license
* Updated AUTHORS.txt

Revised event handling system: Got rid of campvis::AbstractEventHandler and replaced with functionality of tgt::EventListener and tgt::EventHandler

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@338 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@335 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@326 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * added update_legal_header.py script for updating the legal header in all code files of the project
 * ran the file => all TUMVis source files now contain the legal header

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@231 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

* added DataHandle::removeData
* include/forward declaration clean-up

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@208 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@190 bb408c1c-ae56-11e1-83d9-df6b3e0c105e