BaseSpace MonoTouch SDK build

This build is only for MonoTouch projects.  Main differnence is you can
include this sdk in MonoTouch projects safely, because it references
MonoTouch assemblies, and no other dependencies.  Note that in order
for it to work properly, you will need to include settings bundle
plists:
Root.plist - client settings
Common.Logging.plist - logging settings

I excluded them from commits, so you'll have to add your own, and don't
check them in!