Elements don't need to be enabled to be visible.

The WebDriver protocol has a separate facility to
check whether elements are enabled, called `isEnabled`:
https://dvcs.w3.org/hg/webdriver/raw-file/default/webdriver-spec.html

I ran into this issue because we had a button that was disabled
and would only get enabled as we type a username into an `EditText`.
The test would fail because it did some basic checks to see whether
the UI looked good, including checking that the button was visible.
Merge pull request #738 from mkonicek/master

Elements don't need to be enabled to be visible.
Update AUTHORS
Merge pull request #745 from mkonicek/master

Update AUTHORS
Automatically selects the latest version of the app to test if it is not specified by users.

Add code to SelendroidCapabilities.java to select the latest
version of the app to test if the app version is not provided by
the users.

Add a new unit test class SelendroidCapabilitiesSplitNamesTest.java

Signed-off-by: Binh Vu <bvu@paypal.com>