Update options.py

Added vulnerabilities-only option to hide warnings
Update __init__.py

Added functionality to vuln_only option
Merge remote-tracking branch 'Heinibal/master'
Fix PEP8 errors (#68)
Remove unused option
web_test.py: Experimental implementation
pep8
test/test_csrf.py: Rewrote for webtest
test/test_xss.py: Some renaming
test/test_clickjack.py: Adjusted tests for webtest use
test/test_xss.py: removed debug statement
test/test_scan_cookies.py: Adjusted for webtest use
test/test_scan_cookies.py: Adjusted for webtest use
pep8
test/test_clrf: Adjusted for webtest use
test/test_exotic_characters.py: Adjusted for webtest use
test/: Small fix
tests: Adjustments for python3 compability
test/test_webrunner.py: Various changes
test/web_runner.py: pep8