added unit test stubs
Merge remote-tracking branch 'origin/master' into v0.7_unittests
filled in stubs for class TestRegisterFunctions
fixed self in class definition, fixed typo in setUp() in class TestRegisterFunction
fixed missing self.hll references
fixed typo in test_registers_returns_bytesarray
fixed test_registers_returns_bytearray - encapsulated conditional expression in type
fixed accidental commit of test.py copy
fixed mixed tabs and whitespace