Working on nodejs application for lims.  Some progress, a few setbacks.
Merge branch 'master' of http://apfejes@github.com/apfejes/epigenetics-software.git
Update rpy2 code to write _expressions.txt as output (consistent with
other code)
Added option to get 'random probes' when comparing suspected
blood-contaminated samples.
BulkInserts does not return a count, but rather some sort of list. Fixed
code to not use BulkInsert as a counter.