Testing cleanup, bugs, rendering

* Escapes HTML entries in the config presentation (security!)
* Moved cloneData as sanitize() to JCUtils
* Ability to parse raw json as content
* All test...() functions now take variable number of validators

Change-Id: Idb165b4b5a8256a8df3a0b37c0bb2ac888889b88
Merge "Testing cleanup, bugs, rendering"