Refactoring and added kv store for opinion questions
Added new tests for saving to the kv store
generate a unique id for a question choice, store totals in kv store
Added ability to calculate percentages for each opinion and it's hcoices
remove thank you screen test, updated tests to switch to result
Removed creation of thank you screen
Fixed current state
Fixed issue with callbacks
test to check if 2nd choice is chosen
removed stray .only
fixed comment
Show result message
added navigation screen
Added navigation tests, simplified tests so v1 can cope
Merge pull request #95 from praekelt/feature/nge-38-autocalculate

Feature/nge 38 autocalculate