update template

- add coveralls script to travis and makefile
- add coveralls and istanbul as peerDeps
- add coveralls badge to read me
- camelize extension class name
- comment out extension functions so first test pass doesn't error
- use author name in package
- gather repo name instead of github username (not always the same)
- use regular function call instead of `new` in read me and app.coffee
- fix done function issue in tests