Merge pull request #1 from celeron533/master

Add OpenFileDialog for image file path
Release 1.11
fixed #2 misspell
Release 1.12 support VSCommunity 2013 & VS2015 Preview
fixed #2 changed image layer and IsHitTestVisible
Release 1.13
Center Position設定時にずれるのを直した
fixed Editor or Editor Extension error in Visual Studio 2012