getting tags string bounds using newer API
Test PropertyChangeTracker
fixed using statements order, Test()->TestNotify()
Merge pull request #355 from masterrr/masterrr-unicode-tags

Getting tags string bounds using newer API. Fixes #339.
Merge pull request #356 from masterrr/masterrr-propchangetracker-test

PropertyChangeTracker Test. Closes #234
Merge branch 'anton-ios-reports'
donut data ready. working on stability
interaction with users and drag&drop