* added dependency on 'syntax' gem
* refining wait functions
  - renamed BRIAR_POST_TIMEOUT to BRIAR_WAIT_STEP_PAUSE for clarity
  - renamed BRIAR_RETRY_FREQ to BRIAR_WAIT_RETRY for clarity
  - converting many optional args to hashes
* added fix for numeric backspace key on iOS 7
* now waiting for date pickers to appear in should function
* fixed a bug in text view should see text view with text