Import apache apr-1.4.6
Import apache apr-util 1.4.1
Import serf-1.2.1
Import trimmed svn-1.8.0-rc3
Import sqlite-3071700
Allow $ntpdate_config to be NULL. Due to a lack of surrounding quotes, when
ntpdate_config was set to NULL the conditional would (counter to prevailing
logic) succeed -- leading to awk attempting to redirect from a NULL pathname
standard-in. While we're here, make the script consistant with itself by
removing the {curlies} around ntpdate_config (they are unnecessary).
Introduce svnlite so that we can check out our source code again.

This is actually a fully functional build except:
* All internal shared libraries are static linked to make sure there
  is no interference with ports (and to reduce build time).
* It does not have the python/perl/etc plugin or API support.
* By default, it installs as "svnlite" rather than "svn".
* If WITH_SVN added in make.conf, you get "svn".
* If WITHOUT_SVNLITE is in make.conf, this is completely disabled.

To be absolutely clear, this is not intended for any use other than
checking out freebsd source and committing, like we once did with cvs.

It should be usable for small scale local repositories that don't
need the python/perl plugin architecture.
Add new FOREACH_FROM variants of the queue(3) FOREACH macros which can
optionally start the traversal from a previously found element by passing the
element in as "var". Passing a NULL "var" retains the same semantics as the
regular FOREACH macros.

Kudos to phk for suggesting the "FROM" suffix instead of my original proposal.

Reviewed by:	jhb (previous version), rpaulo
MFC after:	1 week