Begin rework of packaging scripts. Restructure packaging system, and make osx and debian packages work.

Changed semantics:
- package upload is handled by a separate script
- dropped syntax highlighting (unnecessary, and had concurrency issues)
- `make install' is no longer used in the packaging process
- debian package changelog points to the forum, instead of showing out of date info
- debian package ships tao dlls in the game root, and doesn't insert them in the gac
- debian package refers users to the website for help manually installing packages

packaging/linux/openra-cnc.desktop

@@ -1,6 +1,6 @@
 [Desktop Entry]
 Type=Application
-Version=20100907-1
+Version={VERSION}
 Name=OpenRA - Command & Conquer
 Comment=The OpenRA RTS engine running Command & Conquer
 Icon=openra