Add a .gitignore file for *.pyc files, so git 1.7 doesn't complain about dirty submodules

BUG=none
Review URL: https://codereview.chromium.org/11154009

git-svn-id: http://grit-i18n.googlecode.com/svn/trunk@76 7262f16d-afe8-6277-6482-052fa10e57b1
1 file changed