use boost::regex if gcc version < 4.8.2
add missing header
remove property workarounds
Merge pull request #67 from voxelinc/linux_properties_fix

Use boost::regex if gcc version < 4.8.2
Merge branch 'master' of https://github.com/voxelinc/voxellancer into perftest
Merge branch 'perftest' of https://github.com/voxelinc/voxellancer into perftest
make properties work under linux, too