Bug 958252 - Implement MarionetteHelper#waitForChild
Merge pull request #16 from gaye/bug-958252

Bug 958252 - Implement MarionetteHelper#waitForChild
Bug 956668 - [marionette-helper] add tapSelectOption method

- add tapSelectOption method
- add related tests
- refactor folder structures
- make standalone fakeApp app
- abstract the manipulation in fakeApp
Merge pull request #19 from EragonJ/bug-956668

Bug 956668 - [marionette-helper] add selectOnOption method to select opt...
bump version to 0.2.1
Bug 950749 - [helper plugin] Limited by current `scriptTimeout` value