Fix autoload, remove Rails dependency, add tests

Loading of files must now be called explicitly, otherwise config settings aren't used (this was always the case).  Also, tests have been added, and Rails is no longer a requirement.
Modify gemspec file listing
We need to have these available to the UIView otherwise we get stack overflow.
Raise if browser is missing and add test for it.
Add .watchr file
generate gemspec
Merge pull request #1 from projectdx/master

Update test harness