Prepare for more path escaping: json football references now
Merge branch 'master' into escape-json-football-paths
1. Move escaping functions to a new object
2. Add a switch for football json data escaping
3. Isolate js and football path escaping for better performance
4. Can do both forms of escaping in a single call
5. Added a note to readme about ulimit on OSX
A more accurate name for the switch and descriptions in tests
Merge branch 'master' into escape-json-football-paths

Conflicts:
	common/app/views/support/package.scala
Fix from earlier master merge. And re-apply football refs fix.
Merge branch 'master' into escape-json-football-paths

Conflicts:
	common/app/conf/switches.scala
Merge pull request #5725 from guardian/escape-json-football-paths

Escape json football path-like references