check for valid tracker in Android
added callback functionality and checking for valid tracker to ios
changed the ios init to plugininitialize as per docu
first test of iOS custom dimension implementation
bugfix and remove debugging nslogs
initial untested version of the addDimension functionality to the Android plugin
remove debug messages. Seems to work
change dispatchinterval from 30 min to 30 sec
Merge pull request #2 from mgerlach-klick/master

Dimensions + iOS Callbacks