major update to the Rakefile and steps try to reproduce issue 259

* added tests for issue 259
    - cannot reproduce
    - https://github.com/calabash/calabash-ios/issues/259

* updates to Rakefile
    - removed irb scripts in favor of rake tasks
    - now using ideviceinstaller to remove and deploy (removed ios-deploy)
    - added rake task for setting the simulator default device (WIP)
Merge branch 'master' into 0.1.4

Conflicts:
	Briar/6-console.sh
	Briar/7-console.sh
	Briar/features/.idea/features.iml
	Briar/features/6-console.sh
	Briar/features/7-console.sh
	Briar/features/Gemfile
	Briar/features/Rakefile
no longer tracing .idea/features.iml