- Rejecting command reimplemented in a more simple, straightforward and readable...

 - Rejecting command reimplemented in a more simple, straightforward and readable way.
 - Minor external interface change: now target drivers should set for aborted commands SCST_CMD_DELIVERY_ABORTED status via scst_set_delivery_status(). In-tree drivers updated.
 - Fixed broken compilation if put_page_callback patch not applied to the kernel. Reported by Erez Zilber <erezz@Voltaire.COM>
 - Fixed several minor problems reported by David Berton <davidbrt@yahoo.com>
 - Fixed __exit misuse, when such functions called from __init functions.
 - Docs updated.
 - Other minor changes and cleanups.

git-svn-id: https://scst.svn.sourceforge.net/svnroot/scst/trunk@364 d57e44dd-8a1f-0410-8b47-8ef2f437770f