Moved BlankSlate to a top level file and created an alias in module Builder for backwards compatibility.
Moved BlankSlate to a top level file and created an alias in module
Builder for backwards compatibility.


git-svn-id: 5676d7e4220d6df15a2ea86614bcde0195e025e0@89 b15df707-ad1a-0410-81b8-e991873a3486

strelokhalfer/builder,jimweirich/builder,hadley/builder