Merge pull request #13 from Randy-Ma/master

Fix an issue that RTF fails to run some test cases
Merge pull request #14 from Randy-Ma/Revit2015

Merge the master branch to the Revit2015 branch
New installer.
New installer.
Remove Gui property on Runner.
Honor cancellation flag.
Fix issues in the console application
Merge branch 'master' into Revit2015