A patch to force kate to use existing session.

Hi all, I've been looking for a way to do this, and Darrell also mentioned that he was looking for a was to use the Multiple Document Interface with firefox. I have written a patch that will enable you to only use a single kate window. It is controlled by a kate kconfig option and can be changed under kate's general settings tab. Tim, Can we push this into the master? is this something we even want to have? I like it personally, I understand if other don't. Remember it is optional so it won't impact anything when disabled, and will be disabled by default. What do you think? Darrell with this satisfy what you were looking for? This is using the 3.5.13 resources, prior to the rename. Some things might need to change (kde to tde stuff). Thanks, Calvin Morrison