additional small fixes on service layer (security errors were thrown too
often)
tests fixed

it can have impact on performance...

parsing this file will not return warnings anymore

getElements
getReactions
getOverlays

* login and rest token managament implemented
* getting of project info via rest added

submaps are opening from link (when accessing it from coment tab in
admin panel), however centering is still not handled properly

there are two type of overlay colors:
* user scope (every user account have custom color schema)
* system scope used when user colors are not defined

search for multiple drugs returned from time to time more results than
queried