added more robust mdadm raid device capture, by actually scanning active arrays via mdadm, rather than just catting the mdadm.conf file, which may be empty

fixed catifexec function to actually work, also now takes arguments that are passed, thanks to a report from John Hallam

add the ability to save the debconf package selection states in the sys handler, which aides in restoring installed packages with the right choices made

made mktemp a requirement for building backupninja, added autotools variables to substitute the proper binary location and removed bad fall-back when mktemp was not there

sys: support selection of VServers to run on with the new vsnames configuration option (Closes: Trac#45)

lib/vserver: added vservers_running function, use it in sys handler (to ease future fix for Trac#45)

dup: support every duplicity-supported transport with new configuration option desturl (Closes: #483712, #346040, Trac#2)

 - general cleanup of dup handler
 - support remove-older-than command
 - also run "duplicity cleanup" before anything else, for safety reasons
 - migrated full/incremental backup switch to new syntax
ChangeLog: removed trailing space