Fixes for Guard again

Fixes @options holding the merged values from previous calls to
Don't exit on Teaspoon::RunnerException

Currently running Teaspoon with guard will break if there is a syntax error in a Coffeescript file. The runner will throw an Teaspoon::RunnerException which will abort and exit. Ideally it would report the tests as a failure and log the problem to be fixed.
Merge pull request #190 from chrisnicola/master

Fixes for Guard again