use namespaces
Merge pull request #91 from hal3/master

fixed memory leak in csoaa and more searn code
Merge pull request #92 from hal3/master

fixed final (?) bug in ezexample
fixed Makefile flag
common load function for bfgs & gd
setup gd so that it can save and resume without losing state
fixed some bugs
fixing MF save/load
fixing MF save/load
fixing MF save/load
remove sequence from VS build
added test on movielens sample for matrix factorization
Merge pull request #93 from jhofman/master

tests for matrix factorization
remove time from bfgs
pulled john's changes