Adding hooks for Global TearDown in Calabash to reset Web App State
Downgrading to Calabash-android 0.4.20 due to calabash-android query console bug in 0.4.21
Adding custom Calabash Login Step
Adding Integration tests for Register, Save and Edit Child Details
Merge pull request #129 from tomclement/master

Adds integration test optimisations (teardown, custom login) and child registration integration tests
Removed unnecessary plugins, bumped android dependency version
Fixes issue #37 - synch dialog box crashing.

This fix changes the photo request url to the server to request for a resided photo. Previsiouly the dialog would hang because the client would run out of memory when processing large photos from the server.
The request to the server now includes a custom size for the picture that the server will return.