* Implement selected and unselected toTab color

* Test options are applied when layout is visible

* Load typface when parsing options

* fix test

* set current tab by container id

* currentTabByContainerID e2e

* lint fix

* e2e test

* largeTitleFix

* update to rn 49 - reload still not working on ios

* bridge fix

* small fixes

* testing with rn50

* removed package-lock

* go back to 49, problem with android in 50

* Implement titleFontFamily in topTab option

* docs

* Pass TypefaceLoader instead of context

When disabling elevation by setting topBarElevationShadowEnabled to false, this commit allows to re-enable it by setting the same property to true.
Elevation was previously disabled by using setOutlineProvider(null), with ViewOutlineProvider being an Android 5.0+ object responsible for determining how views draw their outline. To allow re-enabling elevation, we keep our original ViewOutlineProvider and restore it when elevation is enabled again.

* Document how to use index.js as entry point (ios)

* android too

* android too (fixed)

* added missing options

* generated docs

* generated docs

* async commands for all events

* test fix

* tabBarItem support

* apply tab items on tabController initialization

* e2e test

* refactored bottomTab item

* tests fix

* tabItem testID fix

* renamed tabBadge to badge

* fix merge

* BottomTab fix

* removed BottomTabs

* Revert "Improve getCurrentlyVisibleScreenId on iOS with drawers. (#2052)"

This reverts commit 2c30a52bb9.

* Revert "introducing navbar shadow on iOS (#2339)"

This reverts commit 8fd496e0c9.

* Revert "This fixes an issue with a custom title-view (which has a title and a subtitle) appearing at the left side of the nav-bar instead of the center during a transition animation: when a screen with this title-view is being pushed or when you pop back to it. (#2384)"

This reverts commit 3f7f6c2612.

* Revert "Now allowing the custom nav bar to take up the whole space on iOS (#2306)"

This reverts commit 74a02ccfc5.

* adds shadow opacity, shadow color, shadow offset, shadow radius to navbar for ios

* mentions ios shadow in styling-the-navigator docs

* Rename TabBar options to BottomTabs

* Restructure docs

* upstream merge

* Fixed bad merge

* More bad merges

* Mostly done, however a few properties missing and tests remain.

* async icons loading

* Left button

* Whoops!

* Added button size

* updated docs

* refactor

* Rebase fixes

* Rebase fixes

* rebase fix

* Rebase fixes

* rebase fixes

* reset contributing

This happens because the title-view is being created again when RVVViewController appears. There's probably no point in setting the title-view again with the same data when it already has it. The title view setup is done anyway in RCCNavigationController.

This can be easily reproduced by calling "this.props.navigator.setSubTitle({subtitle: 'a subtitle'});" from the constructor of a pushed screen.

* minor refactor - moved some logic from view o controller

* readme

* doc

* topbar fix

* rm doc

* options presenter fix

* rm userless stuff

* added backgroundImages options

* update readme

* backgroundImage fix

* added unit test

* async await for push and showModal

* async await for push and showModal

* refactored custom transitions

* refactored custom animations

* Now allowing the custom nav bar to take up the whole space on iOS

- Also the custom nav bar reacts well to orientation changes
- Fixes: https://github.com/wix/react-native-navigation/issues/1893

* It now works well on iOS 11 as well

* v1.1.314 [ci skip]

* Added optional fixedWidth property to the Android side menu

    - Fixes: https://github.com/wix/react-native-navigation/issues/510

This code block appears fine on GitHub, but is malformatted on the site. This commit updates it to fit the format of other code blocks in the docs, so it should appear okay.

* v1.1.314 [ci skip]

* Added optional fixedWidth property to the Android side menu

- Fixes: https://github.com/wix/react-native-navigation/issues/510

* Added fixedWidth drawer param to te top-level-api doc

* drawUnder for topBar and bottomTabs

* test fix