- Handling Action buttons on challenge detail
- Action buttons should be inactive when challenge completed or have been registered.
- The scope is only on checking/handing the buttons state, and rest flow (reg/submit) will be as current flow
fix on loading animation when clicking headers
will redirect users if they come from community site using /?action=showlogin
move referer from callbackURL to state

- Revert back callbackURL
- set referer to 'state'
fix to remember view mode on challenge page
Merge branch 'dev' into pemula-S-194724-register-and-submit-buttons-state
Merge branch 'dev' into quesks-I-106081-loading-animation-appears-on-table-headers
Fix issue with reg and submit buttons being visible.
Merge pull request #221 from topcoderinc/pemula-S-194724-register-and-submit-buttons-state

Handling Action buttons on challenge detail
Add cat menu back to tags page.
Merge pull request #237 from topcoderinc/indy-tag-blog-header

Add cat menu back to tags page.
Merge pull request #236 from topcoderinc/quesks-I-106081-loading-animation-appears-on-table-headers

Quesks i 106081 loading animation appears on table headers
Merge pull request #238 from topcoderinc/quesks-I-104467-challenge-remember-view-mode

fix to remember view mode on challenge page
fix subtrack tab issues
Merge pull request #239 from topcoderinc/dan-I-108145

fix subtrack tab issues
Update addEmptyResult to retain thead when rendering empty result
Merge pull request #241 from topcoderinc/quesks-I-111439-missing-column-headers

Update addEmptyResult to retain thead when rendering empty result
typo fix: change "challenget" to "challenge"
Merge pull request #243 from bbodenmiller/patch-1

typo fix: change "challenget" to "challenge"
Add angularJS doc to readme