Move O_SAVE declaration to filemap
Implementing rlc::BlockList
Implementing rlc::File
Update src/Makefile.am
Implementing rlc::BlockList
File::block_list: use externally specified coefficients
Implementing sparse/rlc.cpp
Implement BlockList::to_matrix
Fix File::block_list bug: use File::_nrows
rnc::test::p(Matrix, Matrix, ...): support printing matrices with different number of columns
Implenting basic tests for rlc

Load file
Convert to block list
Convert that to matrices
Print results