user can select to add or not add will start at
change view format from erb to haml
fixed spec for change column name
fixed trim space for ProjectGithub#full_name
show will start at if already setting
Remove comment and align indent
Fix broken spec

Forget fix column name when fix #64
Fix work stop when issue is working
Remove undesirable method as refactoring
Fix start up Timecard.initialize() only once
Fix not use turbolink

Because need reset history when go back to home
Merge pull request #66 from kmiyake/iss-61

Issue#will_start_atの入力は必須ではなく選択とする
Merge pull request #72 from kmiyake/iss-68

Fix work stop when issue is working and tweak some code
Merge pull request #73 from kmiyake/iss-47

Fix not show issue list at home#index