Fix for bluespice.util and bluespice.ping

bluespice.ping.js
* replaced use of "this"
* this error seems to have its origin in the new includsion mechanism

bluespice.util.js
* Removed dependency to ArticleInfo!!!
* Fixed issues introduced by code prettyfing

Change-Id: I126bdd3c1e54076ba203a399f11bd2a9a1422d9c