implement several bugfixes:

 - add missing dependency for check_mk-web: mod_python
 - passwd for check_mk-web points now to the default one of nagios
 - wato config dir must be writable for apache
 - nagios check_result path corrected in check_mk
 - check_mk-agent.linux patched to include ipmi Power_Supply
 - check_mk ipmi_sensors check patched to skip NA or transaction_Running