emoved tools/gyp dir; using git submodule for gyp; using b8c2ab6 (Jul 9, 2013) version; (updated branch point in master to a new one that has python style fix)
fixes(gyp): fix for gyp and external process
bump luvit SHA-1 to the one with bumped libuv SHA-1, which has added Windows libs, that hopefully will fix build problem
bump luvit for libuv fix
bump luvit for libuv threading fix
Bump gyp, PRODUCT_DIR fix for Windows

* Bump gyp to match the Chromium revision (not expressly needed)
* Append /. to the PRODUCT_DIR causing it to become escaped properly
Merge branch 'songgao/upgrade_gyp' into songgao/using_list_file_for_bundle_files
fixed python styling issues that block tests