Update ruby from 1.8.7 to 1.9.3
Fixup generated batch files to not support Windows 95/98/Me.
Upgrade windows-api gem from 0.4.0 to 0.4.2

The windows-api gem had a bug in 0.4.0 where it used the deprecated Config
instead of RbConfig, which triggered deprecation warnings in ruby. Updating to
0.4.2 includes the fix for this issue (the fix was released in 0.4.1).
Add stomp version 1.2.9
Add rgem version 0.6.2 to our gems.
Add minitar version 0.5.4 to our gems for module tool dependencies.
Merge pull request #2 from haus/1.9.3

1.9.3