Removed the template string and moved things on to the template file in the test repo, <repo>/sanity_params.ini.sample
Removed few unused variables and have hardcoded few variables for the sanity environment
stop_on_fail can now be set through env variable
email-to can now be a comma separated list of mailIds
Merge remote-tracking branch 'upstream/master'
Making installation of pyvirtualdisplay and selenium packages optional
Adding webroot back as test report now refers to webroot
Adding back webui_config flag
Merge remote-tracking branch 'upstream/master'

Conflicts:
	fabfile/tasks/tester.py
Incorporating review comments
Merge pull request #2 from smurugap/master

making use of template file rather than a template string for ini file and few related fixes