LookupUtil: various fixes

most notable: do not return an IP-adress when a hostname was asked.
FileSystemDAO: fix mkmount and add copyacl
OSDVolumeDAO_parse: beautification
moudle-init:Beautification.
VLDbDAO: do not die on DNS-lookup error. fix cmdline parameter
BaseModel: lower debug level for ignore-output
afsutil: add method to parse human writeable sizes such as

100M. Remove "B" from Size-units, thus "KB" is now "K" etc.
CellService: Do not die on removed servers.
Services: multiple fixes.

Mostly obvius ones.
exmamples: update to current version.

Still in the flow
Merge pull request #89 from chanke/master

update to current