switching to apache commons path where possible.
using the SimplexSolver for LP solving.
poly -> polyval to be more consistent with matlab.
faster constructors for DenseMatrix, DenseVector.
Merge branch 'apache-commons'
sped up DenseVector.zeros for the common case of primitive values.
Counter2 operations
Merge remote-tracking branch 'scalanlp/master'

Conflicts:
	project/Project.scala
make OAH serializbale.
fixing some deprecation warnings
kind of fixes #64

Kind of. :+ doesn't work, but + does.
Vector.range/DenseVector.range, closes #63
Updated README with UserGuide URL
cantransformvalues for Counter
WIP on new optimization api
making a new api for optimization
generifying SPG
more clean up to PQN and SPG
We don't need FOBOS
docs for SPG