Changeset 2590 for code/branches/buildsystem2/visual_studio/vc8/bin

Added ${ORXONOX_LIBRARY_BIN_DIR} which represents the binary directory for the external dlls on windows.
Restructured concepts in bin/ dir:

• All files in bin/Release or bin/Debug get configured and copied to the output directory. Configure means setting all the variables marked with @Var@.
• MinSizeRel and RelWithDebInfo are considered Release versions.
• If there is not specialised file in bin/Debug resp. bin/Release, the file in bin/ is configured and copied.
• orxonox.ini gets configured with the available plugins (release and debug), the plugins folder and the media directory.
• Also the debug levels have been adjusted for Debug resp. Release versions of orxonox.ini
• When not using multi-config (debug, release, etc.) generator (like msvc or xcode), a run script called run (unix) or run.bat (windows) is configured in the root directory.
• For tardis, ogre.cfg is copied as well due to a yet unknown bug with fonts for the ogre gui
• moved all old style msvc project files to visual_studio folder (that only includes configured output files)
• This commit also makes the visual studio files run in all configurations (tested only on my box).