(svn r8288) -Fix: [OSX] compiling with debug enabled now works again
-This is once again an obj-C vs C++ issue. I need to make a nice and permanent solution soon, but I need the debugger right now

(svn r7886) -Fix: [OSX] control+enter will no longer toggle fullscreen as it collided with other hotkeys (pv2b)
People should use command+enter as it was originally intended (this key combo also worked before this commit)

(svn r7759) -Merge: makefile rewrite. This merge features:
- A proper ./configure, so everything needs to be configured only once, not for every make.
- Usage of makedepend when available. This greatly reduces the time needed for generating the dependencies.
- A generator for all project files. There is a single file with sources, which is used to generate Makefiles and the project files for MSVC.
- Proper support for OSX universal binaries.
- Object files for non-MSVC compiles are also placed in separate directories, making is faster to switch between debug and release compiles and it does not touch the directory with the source files.
- Functionality to make a bundle of all needed files for for example a nightly or distribution of a binary with all needed GRFs and language files.

Note: as this merge moves almost all files, it is recommended to make a backup of your working copy before updating your working copy.