[Ironruby-core] Why IronRuby?

[Thibaut Barrère]

A while back I really thought testing would be the largest use case,
but it went differently - here are my current real use cases:
- faster UI development (windows forms)
- interop with solutions already built on Ruby (see my previous
message on Resque)
- Excel templating (things like embedding IR into spreadsheet, somehow)
- Silverlight (games or apps)

-- Thibaut