mongoid: escape regular expression in search

Otherwise someone could attack the application with regular expression denial of service
When possible, use jQuery .on() rather than .live().

jQuery v1.9.0 no longer has .live() in the API.  Instead use .on() if
it is available.
Merge pull request #197 from Mic92/patch-1

mongoid: escape regular expression in search
Bump version to 1.0.11
Remove Ruby 1.9.2 from travis config
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/assets/javascripts/autocomplete-rails.js