#758 Should fix packaging of ruby for all cases.

I'd like @axelstudios and @macumber to review this. I'm incapable of making a clean installer for some reason, OpenStudio and PAT both crash with an assertion failure on start, but RunManager's tool finder does the right thing and the packaging is correct.
Brute force ruby 2.0 64bit gem loading support
Fix packaging of 64bit ruby to work with NSIS's openstudio.rb installer
Merge pull request #774 from NREL/Ruby64bitPackagingFix

Ruby64bit packaging fix