Cookie module updates + alert updates.
Added modules and alerts for checking certain headers and missing charset.
Added X-Frame-Options clickjacking detection module/alert, made small change to missing charset module.
Improved keying for cookie alerts.
Merge remote-tracking branch 'dm/newmods' into develop
Merge remote-tracking branch 'dma/develop' into newmods
Merge remote-tracking branch 'dm/newmods' into develop
Improve keying to reduce duplicate alerts, shorten supplied resource string.
Various DB error strings
Alert template improvements
About dialog text formatting.
Pass request method to alert.
Contextual keying for stored XSS alerts.

Objective is to reduce minimize duplicate stored XSS alerts while trying
to recognize distinct instances. Uses path + XSStag end offset + 10 (or
less) as the key.
Merge remote-tracking branch 'dma/develop' into develop