first commit
add --with-riemann to configure.ac
more work on export helpers
add udp socket code
add riemann protocol buffer definition
add riemann.pb-c.h include file
remove duplicate config.h
minor fixes to configure.ac
some fixes
fixes
make protobuf sources conditional
free malloc memory
add support for int, float or string metrics
support 64-bit integers
widen thread mutex lock area
update config file comments
add support for host location
Merge pull request #124 from satterly/feature/gmetad-riemann

Add support for Ganglia metrics to Riemann event stream processor