* ch03.xml: Small clarifications regarding 'working copy locks'.
Patch from Gareth McCaughan <gareth.mccaughan@...>,
slightly tweaked in places by me. Part of ticket #5.
* ch05.xml: Small clarifications regarding 'bdb locks'.
Patch from Gareth McCaughan <gareth.mccaughan@...>,
slightly tweaked in places by me. Part of ticket #5.
* ch07.xml: New sidebar explaining three types of "locks".
Patch from Gareth McCaughan <gareth.mccaughan@...>,
slightly tweaked in places by me. Part of ticket #5.
* ch06.xml: Clarify behavior of win32 password-caching encryption.
Based on a discussion with Jack Repenning, covering part
of ticket #1.
* ch09.xml: Better explanation of 'R' status code.
Patch from Eric Hanchrow <offby1@...>.
Completes ticket #4.
Clarify which sort of "locks" are being referred to.
Patch from Gareth McCaughan <gareth.mccaughan@...>,
slightly tweaked in places by me. Part of ticket #5.
* appb.xml: Note the latest Microsoft bugfix release of XP WebFolders.
Completes ticket #6.
