Don't use depot_tools
Download tarball
Extract the tarball
Update python-patch for revert ability
Simplify the update script
Undo the patches when failed to apply
Fix typo
Use ninja from depot_tools
Ship xz binaries
Disable -Werror
Fix bootstrap script
Fix running under cygwin
Write data in binary mode
Make sure .tar is removed before decompress
Merge pull request #72 from brightray/source-tarball

Download source tarball instead of checking out the whole codebase