clean up patches for amanda-2.4.0b3; prepare for 2.4.0b4
update version number
add comment about backward (in)compatibility of amanda-2.4.0
fixed typo
Added basic regular expression and fsent patches by Georg Rehfeld
Fixed a typo in a URL
Added plncore2.diff (planner patch by Georg Rehfeld)
Added tinfdir2.diff and slfcheck2.diff
sbm1917.diff should be also listed in the amanda-2.4.0b3 patches list.
Added smb1917.diff
