Merge pull request #70 from joshuacc/dotnotation

Enhance getPath & hasPath with support for dot notation
Solve a bug in `splitWith`

`takenWhile` and `dropWhile`was called with the wrong arguments.
Merge pull request #71 from Serabe/master

Solve a bug in `splitWith`
Merge pull request #72 from joshuacc/fixglobal

Fixed leaking global in _.accumulate
Added grunt-contrib-qunit.
Fix buggy test in PhantomJS.
Added grunt watch task.
Added npm shrinkwrap file to lock down specific package versions.
Updated contribution guide with info about running tests in terminal.