enable different useraccount name for gitolite user
saga: update from 2.1.2 to 2.1.4 and re-enable build on x86_64-linux
Adds matio-1.5.2

matio is an C library for reading and writing Matlab MAT files.

Homepage: http://matio.sourceforge.net/
Adds getdata-0.8.5

The GetData Project is the reference implementation of the Dirfile
Standards, a filesystem-based, column-oriented database format for
time-ordered binary data. The Dirfile database format is designed to
provide a fast, simple format for storing and reading data.

Homepage: http://getdata.sourceforge.net/
Adds Kst-2.0.8

Kst is a real-time large-dataset viewing and plotting tool that has
built-in data analysis functionality.

Homepage: https://kst-plot.kde.org/
Merge pull request #5066 from vbgl/kst

Adds Kst
hbase: New package and NixOS module
opentsdb: New package and NixOS module
New packages: bosun and scollector
opentsdb: Upgrade to 2.1.0-RC1
scollector: New NixOS module
Add a NixOS module to run bosun
scollector should talk to Bosun, not OpenTSDB
Add an `extraConfig` option to `bosun`
hbase should use dataDir to specify where to store data
OpenTSDB should create its schema on start up
bosun: Update to 20141119233013
scollector: Allow users to specify external collectors
Add meta information to hbase, bosun, scollector, opentsdb
opentsdb: Enable chunked API requests by default