Update build.
Merge branch 'master' of github.com:gf2/gf2
Fix build.
Merge pull request #28 from niczy/master

Fix build. Add problemset, readingsection, ..etc.
Add missing import
Merge pull request #29 from charliezhang/master

Fix build
Update gf2.py, handle multiple pages
Add todo for test.
Merge pull request #31 from niczy/master

Add problemset_test.
Merge branch 'master' of https://github.com/gf2/gf2
Welcome page and responsive signup panel
Update gf2.py, parse pages from build.dart
Update schema.json
Merge pull request #30 from charliezhang/master

Welcome page and responsive signup panel
Merge pull request #33 from niczy/master

Each section should have a type.
Init the request.
Login panel
rename handlers
Add lib
Merge pull request #34 from charliezhang/master

Login panel