Fixed up iOS and OSX project warnings under Xcode 6
Adding subsystem hint, renaming some internal commands to keep things tidy
Remove MSVC prebuild projects until relative path support added. Implement subsystem type for Apple platforms
Moving over to relative paths for MSVC
MSVC premade update
Cleaning up posix premade generation
Adding bootstrap helper scripts. Rename _window.sh to _mingw.sh
Absolute path removal for MSVC
Xcode relative paths now seem to be working
Removing manually maintained xcodeproj, now using prebuilt one. Rename build folder to 'scripts' to avoid gitignore issues
Merge branch 'dev' of https://github.com/kjmac123/metabuilder into dev