Logistic Regression for dense matrices with supporting functions
Requested changes from https://github.com/hpcc-systems/ecl-ml/pull/191
Corrected m_col for mRidge. 
Corrected Vec2Diag transformation for mRidge. 
Removed Normalize for creating DATASETS.
Removed dangling whitespace
Converted inverse function and multiplications for calculating mBeta to
a solver.
Converted C++ functions for findSize to ECL
Initial matrices change
Update maxcols default
Minor name/comment changes
Ridge addition fix
Fixed some alignments
Merge pull request #192 from iMikePayne/master

Logistic Regression for dense matrices with supporting functions