added push check state file to make superlu check work for cmake 2.8.4
Add BaggingMachine
Add basic label combination rule implementations for ensemble learning
Add MockMachine, MockFeature, MockLabels
make n a local variable to fix name clash
Merge pull request #1444 from tklein23/num_features_in_binaryfile

Fixed that BinaryFile::get_sparse_matrix() did not set num_feat properly
Fixing segfault.  Off-by-one when setting number of dimensions in StreamingSparseFeatures.
Simple refactoring: Reuse get_dimension() from SparseVector to reduce code duplication.
Simple refactoring: Reuse dense_dot()/sparse_dot() from SparseVector to reduce code duplication.
* Fixed broken unit test (number of non-zero-entries != number of dimensions).
* Reformatting and fixing of debug output.
Thanks to HeikoS: Disabling reference counting for temporary sparse vectors.