[Evolution-hackers] CamelSession:get_password api change

[Not Zed <notzed ximian com>]

I've changed the 'secret' and 'reprompt' booleans into a single flag, i
thought that'd be more future-proof than adding another boolean
argument, which i needed to add.

Basically
secret == flags & CAMEL_SESSION_PASSWORD_SECRET
reprompt == flags & CAMEL_SESSION_PASSWORD_REPROMPT

and there's a new one
CAMEL_SESSION_PASSWORD_STATIC
which means the returned password will be stored internally for the
current session, outside of camel.  only really to fix a prompt issue.