Clarify timezone of Gitter hours on README
Further pad the "terminal evaluation delay" for Travis' latest VMs.
Allow Class objects to be passed as selectors, as they implement id<NSCopying> also
Fix handling of TextViews within TableViews
Add a test case for the text field within a table view
Add support for checking existence of labels
Incorporating PR feedback and adding an integration test
Rename SLLabel to SLStaticText
Add support for UIPickerViews in Subliminal
Support Picker controls that aren't used as the inputView for a text field

Other behavior added:
 - Special case UIDatePicker to not search below that element as it can significantly deteriorate performance
 - Added a series of test cases for both UIDatePicker and UIPickerView
 - Ensure that all the functionality works on both iOS6 and iOS7
PR feedback
PR feedback: Fixing documentation and some test names
Button can't be found within a table view header
Add a test case showing the issue
The keyWindow isn't always an application window
Make `SLPickerViewTest` 64-bit compatible.
`-[UIView slAccessibilityIsVisible]` now reports an element's visibility on-screen,
regardless of window. (fixes #212)

That is, `-slAccessibilityIsVisible` will now properly report the visibility of views
in any window, even non-key windows; and `-slAccessibilityIsVisible` will now
properly report whether a view is visible on-screen, not merely within its window
(i.e. it will report `NO` if a view is occluded by the contents of a window above its window).

This removes the need for `SLPickerView` to use `UIAElement.isVisible`
(in order to match pickers used as input views).
Allow SLAssert methods to be called from non SLTest subclass methods
Incorporate PR feedback

Adding a comment to SLTest.h describing when SLAssert should be used
Renaming the static variables to use double underscores
Support for using a prebuilt app instead of building one (fixes #207)

This allows for decoupling of build CI and automation CI into two separate actions.
Ensure that the status bar test has completely scrolled to top before finishing.

The app can crash due to a bad-access exception in `UIScrollView`
if a scroll view is deallocated before it finishes scrolling to top in response
to a scroll bar tap.

It's also simpler to test that the scroll view content offset changes as we expect
than that labels in the scroll view do/do not become visible.

Unfortunately, it appears as though Travis requires an explicit wait beyond
the wait-for loop.