Created dime-compat.el, which allows the rest of dime and dylan-mode
to load/compile in Emacs 24.1. Unfortunately there are still issues
with the DIME/dswank communication that I haven't been able to figure
out. The version check has been updated to check the
emacs-minor-version as well. dime-compat.el is not required by dime.el
now: sometime in the future I may go back to investigating the failure
in the communication, but right now easier to just upgrade to 24.3.