Add DITA XML files.
Misc cleanups
Title/shortdesc mods
Title change
Add note about NTLMv2 support.
Move DITA source from /Z/z/M/W/dox to /dita.

This makes the documentation DITA source easier to find, and prevents it
from being included in the distributed ZenPack eggs.
Merge branch 'dox' into develop