Image above limit (Closes: #20)

Now we are saving images over the size limit as a single violation
SQL Tap
Prototype implementation working
Changing the database
Link crawler
Sitemap done
Robots validator and facter
Meta tags facter
Meta robots validator
Meta tags validator
Required meta tags validator
Adding new validators and facters to local.conf
CSSRequestsValidator and CSSFacter
JSFacter and JSRequestsValidator
ImageFacter, ImageRequestsValidator and ImageWithoutAltAttributeValidator
AnchorWithoutAnyTextValidator
BodyFacter and BodyValidator
HeadFacter
SchemaOrgItemTypeValidator
LinkWithRelCanonicalValidator