Separate new issue form and edit issue form
Select member according to project status
Refresh assignee list if change add or not github
Fix bug that occurred crowdworks_url is nil

And fix undesirable code
Refresh assignee list if change add or not github
Fix failed test and undesirable code
Remove whitespace
Create github_members method for remove duplicate code
Tweak design of issue
Fix bug

別チケットでタイムカードを開始したときにチケット情報が置き換わらないバグ
を修正
Merge pull request #192 from kmiyake/iss-144_improve_the_usability

Improve usability on the top page
Fix bug that occurred because of incorrect merge
Merge pull request #193 from kmiyake/hotfix

Fix bug that occurred because of incorrect merge
Merge pull request #190 from kmiyake/iss-97_change_assignee_list_according_to_context

Change assignee list according to context