databases.server.controller.test
commment.server.model.test
revise comment model
double and triple tests for database server model
semicolon is life; semicolon is love
Clean up
Merge pull request #65 from YfLn/Elli

Merge pull request #63 from YfLn/master
Fixed merge conflicts
Deleted changes to changeUserpassword
fix conflict; merging
Merge pull request #66 from YfLn/Kun

databases.model.test updated
Fixed test bugs
Merge pull request #69 from YfLn/yufan

revise comment model test
Merge pull request #70 from YfLn/master

Merging master into Elli