statistics
statistics
statistics
fix .gitignore conflicts

Conflicts:
	.gitignore
brief comments statistics
rich comments statistics
fix bugs of statistics
statistics
statistics
brief comments statistics
rich comments statistics
fix bugs of statistics
statistics
fix .gitignore conflicts
fix statistics/*.ejs conflicts
fix bugs of statistics
remove needless 'jQuery'
Merge pull request #13 from fengyibin713/master

statistics of literatures & comments
Fix null results bug for literature statistics