Updated proof string for Web Differential Analysis

Manipulatable responses => Boolean manipulation
Auxiliary::Web#process_vulnerability: payload fix

Updated to pick the largest matching payload from the payload list.
Auxiliary::Web::Analysis::Timing

Updated to pick the largest matching payload from the payload list.
Auxiliary::Web::Analysis::Differential

Removed payload option from #process_vulnerability call
Merge remote-tracking branch 'upstream/master' into web-modules
Exploit::Remote::Web: added #tries method

#tries method indicates how many times we should run a module until
we establish a session.
Auxiliary::Web::HTTP: updated exception handling

[FIXRM #7724]

Updated #run and #_requestto rescue and elog all exception.
Merge remote-tracking branch 'upstream/master' into web-modules
Auxiliary::Web, Exploit::Remote::Web: style updates
Some errant spaces
added 'from' PID to meterpreter migrate message
Catch exceptions and return value
Working against 3.0.19
Move fork stuff out of exploit into payload mixin

Tested xml against 3.2.10 and json against 3.0.19
Add support for 2.x
Minor cleanups
Remove debugging print
Merge for CVE-2013-0156 RoR Exploit

Also massages the RUBY payload.
Missing period in description
Adds CVE reporting to the UPnP scanner