Update forum configuration.

1. Rename tcFormsUrlPrefix to developForumUrlPrefix

2. Rename forumUrlPrefix to designForumUrlPrefix
Cleanup actions files

1. Move all /platform api to actions/platform.js

2. Fix jslint error.
Merge pull request #283 from Ghost141/forum_url_update

Update forum configuration.
Merge pull request #284 from Ghost141/api_cleanup

Cleanup actions files
Merge pull request #285 from muzehyun/master

TC API - Challenge Terms API - Add Docusign Template Id
Merge pull request #286 from muzehyun/master

Case insesitive when looking for handle
Update challenges api

1. Add submissionsViewable in old and new challenges api response. This field will only return when the challenge is a design challenge.
Merge pull request #287 from Ghost141/challenges_api_update

Update challenges api
TC API - My Challenge Submissions API
Merge pull request #289 from Ghost141/my_submissions_api

TC API - My Challenge Submissions API
no cache for my submissions.
Update my submissions api

1. Check if the caller registered the challenge.
Update Challenge Analyze API
Merge pull request #290 from Ghost141/my_submissions_api

Update my submissions api
Text.
removed.
cache time.