LW DITA DTDs updated

[Mark Giffin <mark@markgiffin.com>]

I updated the Lightweight DITA DTDs to cut things down to just topic and map. The files are in the form of an OT plugin here:

https://tools.oasis-open.org/version-control/svn/dita/subcommittees/LightweightDITA/org.oasis.lwdita

I created branch 0.1 to hold all of the old files, including concept, reference and task files:

https://tools.oasis-open.org/version-control/svn/dita/subcommittees/LightweightDITA/branches/0.1

Questions:

• I left in the highlight domain but I'm not sure if I should have. Get rid of it?
• I didn't change anything with map but I noticed that it requires a topicmeta under a topicref. Is this correct or are we removing this requirement also?
  

Thanks to Carlos Evia for assistance!

Mark Giffin