Adding *.publishproj to ignore

This files is generated by Visual Studio 2013 and should be ignored.

VisualStudio.gitignore

@@ -128,6 +128,7 @@ publish/
 # TODO: Comment the next line if you want to checkin your web deploy settings 
 # but database connection strings (with potential passwords) will be unencrypted
 *.pubxml
+*.publishproj
 
 # NuGet Packages
 *.nupkg