support to gSVD++ recommender and fix on version number on mono IDE
fixes on gSVD++ recommender to support learn rate decay
Merge remote-tracking branch 'parent/master'
fix release checklist
rm debug WriteLine
DataSet: whitespace change
rm TODO comment
new recommender ExternalRatingPredictor; SetupRecommender() code sharing between command-line programs
add default evaluation measure to rating_based_ranking
SparseBooleanMatrix: rm dead code
simplify evaluation metrics
update eval unit tests, add some more
ExternalRatingPredictor: update (c) year, rm unused import
update Changes file
ExternalRatingPredictor: rm more imports
add new recommender ExternalItemRecommender
add Peng Jiang to README (suggested the 'external' recommenders)
merge pull request by Marcelo Manzato
merge pull request by Marcelo Manzato
GSVDPlusPlus: mark FoldIn method with a NotImplementedException; do not test fold-in for this class; rm unnecessary whitespace