write up docs and visibility modifiers on the Core module
Moved operations in Operations into Core for the purpose of more readable documentation
Fixup accidental push of stash merge
should not use rdoc '+' around params
Add docs for test helpers
Document FailureHelpers
sentences should be cap'ed and end with a .
should remove errant # and {}
should use markdown style in wait_tap docs
ignoring unused variable with RM comment
notes should be marked with @note, added whitespace for code readability
touched up swipe docs
word wrapping for code readability
added newline for code readability
converted existing rdoc yard
emphasized 60s limit in send_app_to_background
expanded backdoor docs with another use case
note: do not call start...background outside of console
console_attach should be public
Merge branch 'feature/doc-core' of github.com:calabash/calabash-ios into feature/doc-core