Fix outdated gradle dependencies

[Fishfield]

Fixes #8

I fixed the gradle dependencies, but unfortunately if I run the tests it says "No tests found".

[pedrovgs]

Hey @Fishfield thank you so much for your PR 😃 I've seen the issue you are facing before. It's related to the test runner. As you can see here, screenshot's library is initialized before invoking super.onCreate(..). This works with a previous Espresso version but not with the one you are using after the update. Just changing the initialization shouold work. Can you take a look?

[Fishfield]

@pedrovgs what exactly should be changed in the initialization? Doing the calls after the super methods?

[pedrovgs]

Exactly 😃

[pedrovgs]

@Fishfield yesterday @flipper83 just told me that if you update the espresso version to espresso 3.X you'll have to update the emulator to API 22 😃 You can revert the espresso change if you don't want to change the Travis-CI configuration and record screenshots again.