Modified table relation.
Grub only week_report from article.
Add comment model.
Create comment controller and model
Add certification of user action on comment.
Add comment function on week_report.
Enabled comment logic by stock table.
Revised around model.
Fixed model relation logic on comment.
Add comment logic.
Merge branch 'revise_week_reports' into base_revise
add user model
Add login logic.
Add user logout logic and revised post.
Modified internal logic on skill profile.
Merge branch 'add_user' into base_revise
removed week_reports.
removed migrate file.
Modified skill_profile controller.
mod relation, rest error on crud.