killing gd_mf in favor of mf
added precomputed_prediction bit to example
initialized active_simulation to false, removed extra gd setup
moved MF setup after save/laod
fixed indexing of constant feature in audit
(currently broken) reduction-friendly mf
cleaned up mf.cc
removing special parse_args cases for matrix factorization, debugging
switching branches
debugging
constant now multipled by weights_per_problem
mf merge complete, nn test acting up
bug fix for wap when invert_hash is on
Merge pull request #198 from pierce1987/ih_wap_bug

bug fix for wap when invert_hash is on
fix compile errors
upgrade to VS2013 using boost 1_55
make sure to load initial regressor after feature mask, if it exists
add test for --initial_regressor and --feature_mask case
add documentation that feature_mask is the default initial_regressor if given
forgot to renumber tests