proposed packaging and doctype shells for DITA 1.2

[Michael Priestley <mpriestl@ca.ibm.com>]

Assumptions:
- need to keep the legacy shells from
1.1 to avoid breaking existing users
- beyond legacy shells, adding only
the bare minimum to exercise each new domain and structural type
- users will go to the web tool for
most combinations (such as tech content with learning objectives, or tech
content without the sw domain)

Base (2 shells): 
        topic
and map plus utility domains 
Tech content (11 shells): 
        topic,
concept, task, general task, task with requirements domain, reference,
glossary, ditabase (all incorp. hazard, utility, sw, pr, ui domains);

        bookmap, 2 classification
maps 
Learning and training (7 shells): 
        5
l&t topic types, topic with l&t domain, map with l&t domain


Michael Priestley
Lead IBM DITA Architect 
mpriestl@ca.ibm.com
http://dita.xml.org/blog/25