Fix missing attach_files method on Assessment::Training. Move method to parent class
Merge pull request #84 from jsyeo/jsyeo-fix-attach_files-missing

Fix missing attach_files method on Assessment::Training. Move method to parent class
delete all unused tables
Merge branch 'development' of github.com:Coursemology/coursemology.org into development
fixed missing github link for coursemology team
remove all unused models
Merge pull request #85 from weiqingtoh/wq-github-link-fix

fixed missing github link for coursemology team
move forum models to forum folder
refactor survey
Merge branch 'development' of github.com:Coursemology/coursemology.org into development
Merge branch 'development' of github.com:Coursemology/coursemology.org into Deploy