Bug 22235: Make maintenance scripts use koha-sip instead of koha-*-sip

Bug 22235: Make maintenance scripts use koha-sip instead of koha-*-sip

This patch makes all maintenance scripts use **koha-sip** instead of
the old **koha-*-sip** scripts.

To test:
- Run:
  $ perl misc4dev/cp_debian_files.pl
  $ sudo service koha-common stop
=> SUCCESS: No errors and the SIP-related sevices are stopped
  $ sudo service koha-common start
=> SUCCESS: No errors and the SIP-related services are started
  $ sudo service koha-common restart
=> SUCCESS: No erros and SIP-related services are running
  $ sudo koha-create --create-db test
  $ sudo koha-sip --enable test
  $ sudo koha-sip --start test
  $ sudo koha-disable test
=> SUCCESS: No errors, instance disabled, no SIP running for test
- Sign off :-D

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>