Merge changes I783ea295,I278b7c11,I025e5eb4,Ib6a18a5a,I91cce2a1, ... into tizen

* changes:
  Fix boiler plate to apache license version
  Add unittests for CommandManager and CommandFinder
  Fix parameter type, segfault, logs, and minor issues
  Replace Command class to ClickableItem
  Fix typo
  Add new class for managing voice touch command