Merge branch 'master' of https://github.com/charliezhang/gf2
Merge branch 'master' of https://github.com/gf2/gf2
add before merge
merge
Json API library, async signup email check
Implement check_email API.
Style fixes
Some updates
ignore packages
remove package
Add bootstrap css
Indent by 2
indent 2
revert app.yaml
Basic Signup functionality
Merge pull request #18 from charliezhang/master

Async email check and signup
problemset model
Merge remote-tracking branch 'upstream/master'

Conflicts:
	web/handlers/user.py