Implemented sanity and smoke tests for Heat.
Minor modification of value returned by _create_nano_flavor().
Added dependency to setup.py.
Reordered and modified imports per pep8.
Refactored cleanup module to avoid code duplication and added stacks cleanup code.
join() func arguments organized as a tuple.
Merge branch 'master' (that was rebased from upstream) into heat_tests.
Rebase done.
Heat smoke test moved to heat package.
Version of heat-client downgraded to 0.2.2 in setup.py.
Test description and test method naming fixed.
Stack creation, updating and deletion actions divided into two steps.
Added verification points to Verify details step.
Added verification of Heat service is present in the keystone.
Minor misprint in test_heat_actions.py fixed.
Enhanced verification of heat service availability.
Merge remote-tracking branch 'origin/heat_tests' into heat_tests
setup.py merged.
Added validation of heat_client value.
PEP8 comments fixed.
Merge pull request #97 from yyekovenko/heat_tests

Added sanity and smoke tests for Heat component.