Implementing projects table and issues table

(All tables which include created and updated)
1. created date problem: create date format has issue when update time
changes
"template" : '#=convertTime(created)#'
NaN/NaN/NaN NaN:NaN:NaN
but create time is not changed in database
http://localhost:2403/dashboard

(issues table)
2. uid can not be created in issues table

3. it seems that there is a build-in sessions table, so we have
'session' table instead of 'sessions'

4. each cell only can be editted once