#2 linux compatibility patch for Gangsta_Ogre

[Klaus Zimmermann]

Various linux related changes:
*standard mains if not defined win32

*Samples are installed inside the tree in
Samples/Common/bin
along with appropriate plugins.cfg and resources.cfg

*Media directory is included in distributuion

*in Samples/Common/include/Sample_Common_Ogre.h
the addResourceLocation("../../../Media/Gangsta") is
only executed
on windows. I believe this should be removed all along and
placed inside the resources.cfg, even more so since it
references
a path that is not part of the cvs-tree.

[Klaus Zimmermann]

linux compatibility patch