Fixed JSHint errors & made 'grunt' work.

- [x] Running <code>$ grunt</code> now runs JSHint and Karma tests without failing (9/9).
- [x] Fixed all JSHint errors. <strong>Make sure you fix these before you PR!</strong>
- [x] Suppressed karma testing of server (because it throws a "don't know what 'require' means" error).  
- [x] Added newlines to the ends of all files so GitHub doesn't complain. <strong>Don't forget newlines!</strong>
- [x] Modified .jshintrc to (temporarily) stop complaining about 'unused' variables. <strong>[Turn this back on](https://github.com/mLuby/LenderBee/compare/BraveBeehive:dev...dev#diff-4d5aa81bf4f18104bb6ea53a8b5d1f43R16) to test your section before you PR!</strong>
- [x] Modified .jshintrc to recognize that 'angular' is a global variable.