FisherLDA.cpp preprocessor class added
FisherLDA.h preprocessor header added
added cannonical vars
FisherLDA_unittest added
fixed valgrind issues
fixed minor issues.
RF notebook added
Merge pull request #2359 from mazumdarparijat/documentation

Random Forest notebook added
Merge pull request #2339 from kislayabhi/Fisher_lda

CFisherLDA preprocessor class added
LDA.cpp eigennized
used decompositions for inverse claculations in CLDA.cpp
corrected ifdefs for eigen3
SVD method added
SVD method cleaned
enums added
gamma added & householder used
fixed valgrind issues and others
Name added
Added unit-test