Move calculate_score to helper to use it from view as well
Show current score in problem list
Fix check attendance. refs #202
Merge pull request #197 from TakenokoChocoHolic/131_show_dynamic_score

131 show dynamic score
Merge pull request #205 from ryysd/fix_check_attendance

Close #202
Modify headers
Fix the current score in the problem list for finished contests
I made Notification "Correct" / "Wrong" bigger so that it could be noticed.
Merge pull request #207 from TakenokoChocoHolic/151_size_of_notification_ACWA

Close #68, Close #151.
Merge pull request #206 from TakenokoChocoHolic/problem_list

Fix Problem List
I deleted Google+ and Twitter login button.
Merge pull request #208 from TakenokoChocoHolic/178_DelGTLogin

Delete Google+ and Twitter login button
Remove links to join other groups
Remove the link to create new group
Provide links to join groups for admins
Merge pull request #211 from TakenokoChocoHolic/211_prevent_contestants_from_joinning_other_groups

Prevent contestants from joining other teams
Provide edit features for contestants
Restrict non-members from editing groups' names
Merge pull request #212 from TakenokoChocoHolic/212_rename_group

Add "Rename Group" (for contestants)
Disable submit buttons when other teammates have already solved them.