Usage
```js
Navigation.setDefaultOptions({
      topBar: {
        backgroundColor: 'red'
      }
    });
```

* disabled back gesture support

* changed disabledBackGesture prop name to popGesture

* upgraded detox to version 6.x.x

* fixed detox script, added release config

* readme

* fix

* Reorder dependencies

Keep vs code happy

* Make markdown files readable on MacDown

* BackHandler compatibility

Give precedence to react's BackHandler when hardware back button is pressed

* f

* Update test

* Restore deps

* readme

* dewfault values

This reverts commit 4a12632364.

* V2 overlay skeleton (#2097)

* skeleton

* basic test

* remove useless files

* remove useles files

* semicolon

* refactoring

* rm useless files

* alert dialog more styles

* hot fix

* tests

* e2e with own alert

* fix test

* fix ios e2e

* custom dialog WIP

* WIP

* refactor custom dialog

* fix e2e

* gitignore

* fix js tests

* remove hardcode

* snackbar

* drop FAB for now

* fix test

* readme

* WIP

* ios, tests

* refactoring

* current tab

* android tests

* readme

* current tab index ios

* fix tests

* readme

* test fix

* probabl test fix

* push/pop promise

* tests

* modal

* other

* fix tests

* probably test fix

* readme

* WIP

* ios, tests

* refactoring

* test fix

* probabl test fix

* V2 overlay skeleton (#2097)

* skeleton

* basic test

* remove useless files

* remove useles files

* semicolon

* refactoring

* rm useless files

* animation fix

* fix tests

* hide toolbar

* default values

* default values

* tmp commit

* tests

* animated hide

* animated hode improve

* fix topbar

* readme

* lifecycle WIP

* lifecycle alert delay hack

* test fixes

* move topbar to container

* fix tests

* refactor

* refactor WIP

* refactor fix tests

* nav options fallback to parse

* WIP

* topbar background fix