Fixed JC-1498
#JC-1498 Lowered the level of logging JCommune was mentioning the amount of plugins
JC-1509 Fixed adding authenticated user to Registered Users group.
Merge remote-tracking branch 'origin/master'
* Lowered the level of logging about mentioned users in posts to trace.
* Additionally got rid of warnings in the class.
JC-1509 Added encoding authentication request parameters. Login and password configuration properties are made optional.
Merge remote-tracking branch 'origin/master'
JC-1509 Added property for correct unmarshalling of response from rest service. Fixed saving user during authentication when JCommune and Poulpe use the same database and user absent in JCommune.
Fixed JC-1486:
-fixed 2nd scenario
Merge branch 'master' of ssh://github.com/jtalks-org/jcommune into jc1578.error500inPm