* fix(android-styling): correctly detect if drawable uses ColorFilter
Treat a widget with a BorderDrawable background as any other, even if it's FilterOnly
If the drawable has been replaced with a new one, clear _cachedDrawable
Fixes#6341
* test(button): add test for changing border-radius and color in button
* test: fix test checks for IOS
* keep original drawable cached
* enable recycling of nativeView
* backgroundInternal is reset if setting new value leads to background.isEmpty() == true.
* android background.getDefault always return copy of the background. Now all controls that mutate the background can be reset to initial state (e.g. Button & ActionBar)
passing resources to copied background so it respect density.
fix properties initNativeView
* reset padding when backgroundInternal is reset.
* Fix text reset
Fix padding reset
* fix tsc errors
* fix ugly text rendering.
* Add unit tests for recycling native views
Fix several issues that came from the above tests
Fix maxLength property missing a converter callback
Remove old files
* Remove old files
* Revert backgroundInternal setter
* change the order of tests so that appium can work again
* Remove suggestion on every TextView & TextField init (strangely it is enabled after view is recycled....)
* Fix function to get parent layout if specified
* Button stateListAnimator restored when button is recycled
zIndex defaultValue is now undefined instead of NaN
* revert zIndex.setNative to always clear stateListAnimator because it was breaking one UI test (setting value=0 was returning the previous stateListAnimator)
* fix search-bar backgound-color recycling
* Fix alignments setters
* Fix imageView recycling
Fix button recycling
Fix edit-text recycling
resetNativeView is called only if recycleNativeView flag is true
* Fix incorrect merge
* Fix text-view & text-field textTransform
* Fix EditText text reset
* Fix runtime crash on ARM emulator API 21
* Fix text-base minHeight. maxHeight reset
Fix reset of isUserInteractionEnabled
Call native setters once when a page is instantiated.
Fix background not being reset, Label's background is now set to background, not layer
Make the nativeView field instead of property for performance reasons
* Fix unit-tests checks.
LetterSpacing handlers are added for iOS and Android API 21+
* Removed unneded check for android
* Used parseInt instead of new Number due to TSLint error
