Log Message:
Updated mrtg to 2.10.15

* patches for netware support
* the optional Conversion function wants to have the original
  data pulled in via snmp to work with, mapping \n and \r to nothing
  and stripping spaces must happen later.
* better error message for missing library
* Updated to snmp_session 1.05
* fix for cuin and cout values saved in html comments
* fix for polish translation
* nodetach option for running mrtg under daemontools
* fixed indexmaker. added missing last for  --section=portname code
* fixed scaling bug in rateup (unsigned long) should have been long long
* fix indexmaker when used with 14all