windows: also define _WIN32_WINNT
wix: return package path properly
main: Show help if no arguments were provided
Add support to fedora 20
hacks: use rm -rf as a replacement for shutil.rmtree in windows
hacks: Add required argument to shutil.rmtree() replacement
osx: fix app DMG packaging
strip: add support to exclude symbols
Add an option to bootstrap only the build tools
osx: be more tolerant with changing the id
ios: add support for iOS 7.0
ios: add iOS 7.0 DistroVersion enum
win: fix detection of XP
linux: add initial support for ARM cross-compilation
Add config file for linux arm cross-compilation
x264: fix linux arm build
libvpx: don't use hardoced gcc
libmad: fix linux arm build
variants: support 'no' modifier for variants

Use positive variants and allow a 'no' modifier for them
variants: add new variants to customize builds even more

diabled for ios and android:
  gtk, python, clutter
enabled for linux:
  x11, alsa, pulse, cdparanoia, v4l2