Replace SH_isEmpty to SH_hasObjects (figure out naming some other time)
Replace testIsEmtpy with testHasObjects in test protocols
Add failing tests.
Green tests for NSArrayTests, NSDictionaryTests and NSHashTableTests
Green tests for NSSet
Green for  NSDictionaryTests#testMap and NSHashTableTests#testMap
(Got to look into not using or mocking SH_hasObjects) in other tests
All tests green. Replaced SH_isEmpty with SH_hasObjects
Update readme.
Bump to 1.5.0
Merge branch 'release/1.5.0'