Merge pull request #92 from wangzhihao/master

change SEQUENCE_MAIN_SEQ to SEQUENCE_COMPONNENT_INQUIRY_SEQ
Fix jslint error in challenges.js
Merge remote-tracking branch 'upstream/master'
Merge pull request #93 from Ghost141/master

Fix jslint error in challenges.js
Fixed to check prize_id.
Active Billing Accounts API
recent design winning submissions
checkpoint api update
Merge pull request #94 from lsentkiewicz/master

checkpoint api update
Typo.
Handle no-rating, default to 0.
fix the syntax error in sql file