Merge remote-tracking branch 'upstream/master'

Conflicts:
	Appium/Properties/AssemblyInfo.cs
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/appium/appium-dot-exe

Conflicts:
	Appium/Properties/AssemblyInfo.cs
Fix tor issue#27

- implemented NotifyPropertyChanged on MainFormModel
- ApplicationPath and UseApplicationPath setters now throw
PropertyChanged event
- added SetUpNewAppPath method to setup path  with auto check
of UseAppPath checkbox - for browse button usage.
Removed unused reference
Merge pull request #28 from peepa/issue27

Fix for Issue#27