Add doc written by @prattpratt

Tweaked syntax. Added section on appium predicate helpers
uninstall before install remote apk
update to 1.1.0
Merge pull request #2656 from Jonahss/master

update to 1.1.0
Merge pull request #2651 from bootstraponline/prattpratt_doc

Add doc written by @prattpratt
Merge pull request #2654 from bootstraponline/uninstall_fix

uninstall before install
adding intial implementation of the network-connection api for selendroid

https://github.com/SeleniumHQ/selenium/blob/master/java/client/src/org/openqa/selenium/mobile/NetworkConnection.java#L36

Just handles toggling Airplane mode currently.