Merge remote-tracking branch 'upstream/unit-tests'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge pull request #168 from shermdog/unit-tests

Unit tests for utils/scp utils/start_shell
unit test cases for utils->fs.py
unit test cases for utils->fs.py
Test cases for utils->fs.py
pep8 corrected
more test cases
missing xml file
changes as per review comment from rick
missing xml file
test case for tgz functionality
more test cases for fs.py
unit test cases for fs.py completed
unit test cases for utils->util.py
added test cases for utils->sw.py
Merge pull request #173 from vnitinv/unit-tests

Unit tests