remove all R code
Sampler's lhc wasn't correctly copying from a matrix to a table
maximin LHC was breaking when asked to generate 1 sample
also remove R-related error classes
Merge branch 'rm_r' into release-0.10.0

Conflicts:
	src/main/scala/tuner/Tuner.scala
Merge branch 'release-0.10.0' of github.com:torsneyt/tuner into release-0.10.0