[59295112] Get OpenStudio working with Ruby mingw32 build

@macumber

Notes:

  - The build of ruby we're using is a slightly modified version of the ruby-installer.org 2.0.0-p247. It's been enhanced to include a linker def file for MSVC and it's config.h file has been replaced with one from an MSVC build of ruby, so that the #defines are correct for MSVC
  - The build is currently hosted on my dropbox account. We'll need to work with @axelstudios once we are comfortable with it to get it put on NREL's server
  - I have verified that OpenStudio, Pat and SketchUp can all launch with these ruby bindings. OpenStudio and Pat successfully use the embedded ruby interpreter
  - SketchUp fails to launch the plugin because of .rb script changes that need to be made.

Final Notes

I cannot explain the great trouble I had with the official mingw build last time I tried. My only though is that it was because I was working with a 64 bit build at the time.

With this current success it likely makes sense to drop our aws specific build of ruby and unify on this build of it at some point. We would need to add the required modules and then replace the config.h as descript in the README in the ruby.zip file I posted.
Needed to also set RUBY_LIBRARY to override Ruby in my path

@lefticus, it is a little weird right now that the version of Ruby found in my path is shown in the top level cmake but the configuration of RUBY_LIBRARY gets my OpenStudioCore project configured correctly.  Should we call find ruby again from the top level if we are building it?

[#59295112]
For some reason the 32 bit stuff is installed to Ruby while the 64 bit stuff to Ruby-install

[#59295112]
Plugin starts and can make a zone

Will need to address install location, new location is C:\Users\<name>\AppData\Roaming\SketchUp\SketchUp 2014\SketchUp\Plugins

[#59295112]
Removing old prototype C++ code for new plugin, corresponding ruby code was removed long ago

[#59295112]
Conditionally load the set and fileutils libraries from standard location

[#59295112]
[#59295112] Move to AWS Ruby 2.0 package

This should get us in a good place for official Ruby 2.0 support when it comes. This works by "patching" the existing ruby aws package to be buildable against MSVC DLL's. In the future we should just unify the two uses of ruby.
Merge branch 'develop' into 59295112-Ruby2_0_Sketchup
Merge branch 'develop' of github.com:NREL/OpenStudio into develop
Merge branch 'develop' of github.com:NREL/OpenStudio into develop
Merge branch 'develop' of github.com:NREL/OpenStudio into develop
Translation of daylighting control from sdd to osm

[#61562032]
Merge remote-tracking branch 'remotes/origin/61562032_SDDDaylighting' into develop
Merge remote-tracking branch 'origin/develop' into sdd