small fixes, added favorite question test case
added more test for favorite
added tests for UC4, fixed numbering
test cases for UC5
Merge pull request #6 from Kopo101/usecases

Test cases for UC4 and UC5
added clear

Added a clear on LocalDataStore
added test cases for UC6
added test cases for UC7
Added UC1-3 Testcases

Nonsense test cases because
added test cases for UC9
added test cases for UC10
added test cases for UC11
cleaned up extraneous tests
changed Object to ? extends model
actually fixed it now,  with changes to image path
missed one
added mock elastic search, doesn't mock it too well
fixed conflicts, merged
Merge pull request #7 from Kopo101/usecases

Test Cases for Review