This patch applies all of the work done to add persistent cache support,
cache manager debugging, and a variety of bug fixes. A full description
will be committed within doc/txt/winnotes as part of a later commit.
(cherry picked from commit 0b90d69f8a44e6c7ba20553cfb7d5cf7072bab57)
Update documentation on cache control and credential manager options
in MSI deployment guide.
'CachePath' setting in registry allows REG_EXPAND_SZ type.
Update registry documentation for 'CachePath' setting.
Both installers save the credential manager command line options in
registry.
Fix handling of existing 'afsdcell.ini' file in WiX installer.
WiX 2.0.1927 changed the XML schema. The WiX installer has beed
updated accordingly.
