Fixed the version range for sinon-chai.
Update gestures.md

Documented how to interact with slider on Android
improved touch test + wd upgrade
Merge pull request #2280 from joe-harter/master

Update gestures.md per Issue #2254
Merge pull request #2278 from paymand/chai

Fixed the version range for sinon-chai.
Merge pull request #2279 from sebv/touch-test

improved touch test + wd upgrade
these methods take complex body parameters, so make them posts
inner cbs need proper scope (cc @sebv)
creating instruments needs to come before setting prefs
because in setting prefs we might ephemerally launch instruments
which will check available devices
don't reset sim during location test because it removes necessary files
fix uiautomator loc strat tests, and quarantine flakey wifi test
Add touch and multitouch actions for Android
fixing gesture tests and quarantining broken multiaction tests
Merge pull request #2270 from imurchie/isaac-touch

Add touch and multitouch actions for Android
fix up some version handling so we can use ios 7.0 with xcode 5.1 for example
Merge pull request #2286 from jlipps/master

fix up some version handling issues