Merge pull request #145 from basho/ku-node-package-rebased

Node-package integration to build debs and rpms

First packaged basho_bench

Through the effort to make smaller package, several changes to the
code and dependent modules were done:

- dependent modules updated; lager, mochiweb and getopt
- some dependent modules removed; erlcql, velvet, casbench
- deprecate R15

Andalso, there are some kludge to enable package install with node_package;

- not using escriptize but just a proxy script installed
- unnecessary directories like log, data created
- unnecessary user and group named basho-bench created for this
- not pinning dependent module versions yet

Tagging Riak 1.4 release benchmarker

Merge pull request #100 from nathanaschbacher/nathan_dev

summary.r changes, PB Search testing, and ETS testing.