Created unittests for doorman.py, test coverage is 100%

nosetests --with-coverage --cover-erase --cover-html --cover-package=doorman tests
...........
Name              Stmts   Miss  Cover   Missing
-----------------------------------------------
doorman               0      0   100%
doorman.doorman      55      0   100%
-----------------------------------------------
TOTAL                55      0   100%
----------------------------------------------------------------------
Ran 11 tests in 0.014s
Added coverage function in Makefile added cover/ to .gitignore
Merge branch 'develop' of https://github.com/qurben/doorman into develop