Merge pull request #14 from dbeck/master

integrated lz4 and murmur3 libraries; and removed unused netinfo util
removing netinfo from makefile
updating submodule ref
updating submod ref
Fixed some logging and diag stuff.
fix centos6
Merge pull request #15 from starschema/node-connector-update

Fixed some logging and diag stuff.
Rename node-connector module to node-provider and the package name changed to virtdb-provider
Separate node-connector package from node-provider
Fixes to the node packages
Merge pull request #16 from starschema/to-review-node-packages

Separate node connector from node provider
updating submodule ref
Merge branch 'master' of https://github.com/starschema/virtdb-common
placeholder for data queue impl