#15 Add support for Search feature
#17 Add support for tracking exception and errors
#19 Default prefixing to separate screen views, events and exceptions
#20 Support tracking social interaction
Implemented an extensive demo that covers all new features.
Merge branch 'master' of https://github.com/mattiaslevin/PiwikTracker

Conflicts:
	PiwikTracker/PiwikTracker.m