Add new device and automation capabilities, deprecate old caps

Added deprecation warning for older style caps.  Warnings are output
once only for a given function or capability.  A final trailing log
message is released saying there were deprecations.

Busted unit tests into smaller tests

Capabilities are now an object, created by passing the capabilities
to Capabilities.  Properties on that object are copied into the Capabilities object so the API is identical.

Store the value of platformVersion as version.
Fix android process detection
Merge pull request #2097 from bootstraponline/android_process

Android process
Merge pull request #2034 from DylanLacey/master

Prepare for mjsonwp capabilities (platformName in particular)
mention reason for releasing 0.17.2
make sure the tempdir exists before trying to write aligned apk to it
changelog and bump to 0.17.3 for publish