Added index on exercise id and points name
Added index for submissions.processed as index was missing
Merge pull request #189 from rage/master

Checkstyle contribution
Updated maintainers section
Merge pull request #190 from jamox/indexes

Refined index and added new index for submission.processed
Cleanup whitespace
Added index for feedback questions
Fix misnamed method name in migration
Added contributing.md to discuss about our development guidelines and
conventions.
Lets use https for rubygems
Cleaed up contributing guidelines to one unified place
schema.rb update
Don't allocate RAM used by ramdisk to program.
Merge pull request #195 from jamox/contributing

Added contributing.md
Updated ext/tmc-sandbox.
Moved exercise json generation from acts-as-api to lib, partially cause
deployment to sub dirs and url helper in models dont really work
together.
Merge pull request #198 from jamox/exercise_json

Moved exercise json generation from acts-as-api to lib
Restored user_id to exercises/:id.json