configure: Removed --enable-header-install. It's now always enabled. There didn't seem to be much point in keeping it optional anymore. They're now more useful than before because shared libraries are also installed. --HG-- branch : HEAD

Removed unnecessary macro definitions from Makefiles. --HG-- branch : HEAD

Flattened header namespace on install. --HG-- branch : HEAD

Build libdovecot.so and libdovecot-storage.so. Based on patch by Stephan Bosch. --HG-- branch : HEAD

mail_user_*() now handles home directory lookups when necessary. Namespace owner is now a pointer to struct mail_user rather than a string. --HG-- branch : HEAD

shared namespaces: new %%h variable, expanding to the traget users home. --HG-- branch : HEAD

Added initial support for shared mailboxes. Listing isn't supported yet. Each user gets their own hidden namespace created automatically when they're accessed the first time. --HG-- branch : HEAD