1. move angular filters to a separated file.
2. reorganize required libs in index.html page.
3. some code cleanup
1. move angular directives to a separated file.
2. reorganize required libs in index.html page.
3. some code cleanup
adding missed semicolon;
1. move angular controllers to a separated file.
2. reorganize required libs in index.html page.
3. some code cleanup
1. move angular services to a separated file.
2. reorganize required libs in index.html page.
3. some code cleanup