Work on json database file parsing, still needs some work.
Implemented Erwan's feedback
Changed vuln data references to url
Correct wp_vulns file
Fix rspecs for new json
Fix wpstools check-vuln-ref-urls
Implement FireFart's feedback
Use fail
Dont use fail
Add file
Merge branch 'json_data'

Conflicts:
	data/plugin_vulns.xml
	data/theme_vulns.xml