added initial experiment for running tests in parallel
some refactoring
Merge remote-tracking branch 'origin/master' into features/parallel-execution
style: satisfy jshint indention warnings
style: break some overlong lines
chore: rename logTimestap to logTimestamp
refactor: reduce function calls for logTimestamp
refactored the test runner to support parallelism and changed the way selenium cli args are passed
changed some output colors
removed the not useful error data from the output
added google group test example
improved test for selenium server management and fixed #152
added filter option on the test_settings object
fixed some jshint errors
improved the console output for parallel execution
updated sample test
Merge branch 'features/parallel-execution' of https://github.com/beatfactor/nightwatch into features/parallel-execution
merging from master
improved tests and read globals external
added a few tests