Add test files

This reverts commit 2a5262c292a110d24009ab9981e430ba4b4a98a0.
Test request handler unbuffered
Ignore prefix header files
Test activity handler checks
Test revenue invalid amount
Move Adjust-Prefix.pch file into test folder
Expect NSUIntegers in NSArray.count tests
Fix some warnings by adding explicit type casts
Renaming of project and tests
Fixed warning unused vars