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[BUGFIX] User suggest at team_members/new not working with relative_url_root

* Closing #3540
* Closing #3704
coffescript refactoring pt.1
Move search autocomplete call to dispatcher
Fix issue with undefined dispather page
Merge pull request #3704 from former03/feature_bugfix_js_memberadd_realtive_url_root

[BUGFIX] User suggest at team_members/new not working with relative_url_root
Merge pull request #3645 from lucasuyezu/alphabetically_sorted

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