#67: backup
Merge branch 'master' into subtask

Conflicts:
	Models/Task.cs
added in subtask table to db
database
#67: fixed up the c#
#67
#67
#67: database
#67: backup
#67: backup
#67
#67
backup
some db changes
Merge branch 'master' into subtask
code review
Merge pull request #89 from rhsu/subtask

Subtask