Revisions for skeleton/lib/base.php

Fix/updated headers.

Don't need to include Help.php

ws

Registry::getParam() -> Registry::get().

No more HORDE_LIBS.

Remove includes of Browser.php that are no longer needed.

Config:: and Help:: moved to framework packages.

Browser:: is now a framework package.

[cjh] Various $no_auth and $self_contained_auth flags have been standardized
into an AUTH_HANDLER constant, which if defined signals the application
that it should not check permissions upon calling $registry->pushApp(),
as the calling script will handle that itself, or is a system-level cron
job/script/etc.
[cjh] Add an option to $registry->pushApp() to specify whether or not to check
application permissions.

[cjh] The 'allow_guests' setting, and $registry->allowGuests(), have been
removed in favor of Horde_Perms application permissions.

flesh out skeleton a little with a working menu bar, sample prefs

prevent errors with transparent authentication.

Use horde/lib/core.php in all applications. For now, I've commented
out the HORDE_LIBS-based includes in core.php and we're still using
the old HORDE_BASE . '/lib/' includes everywhere. But the HORDE_LIBS
constant is now available everywhere and core.php is included to
properly set up the base framework.

I also hit a bunch of other base.php things while I was at it:

- always check the results of $registry->pushApp() and display an
error if it fails.

- removed old cache_ssl code which is handled by
Browser::downloadHeaders() now.

- make sure all base.php files check authentication (you may need to
specify allow_guests = true on some applications that were open
beforehand).

- move the auth check up as soon as possible so as not to do
unnecessary work.

- remove libraries and code that aren't used.

- try and organize files consistently.

- probably a few other minor things.

Please test out everything as you can and report problems or syntax
errors; I'm sure I missed a thing or two.

Use paths that are correct for the newly proposed structure.

Start of a new way of defining the base path and classes.
Followup to this on the dev@ list coming.

Add some basic files to the skeleton, update some code to current state-of-the-art.