Got rid of obsolete solver test
Changed the name of the graph type to graph_interface; wil soon use graph as the name for a wrapper type
Changed the name of the sparse_matrix type to sparse_matrix interface in preparation for making a wrapper class sparse_matrix
Basic matrix test now ensures that there is at least one entry in each row / column
Fixed the basic matrix tests
Fixed a bug in self-avoiding walk application
Checkpoint
Checkpoint
All matrix modules compile now, need to make fixes in solvers and elsewhere
Solvers compile, need to fix tests & examples
Wrote sparse matrix factory methods
Reconciled tests to new matrix API
Fixed a bug in default matrices that gave the wrong orientation for column-oriented format
Missing call to set matrix entry with reallocation for CSC matrices; fixed and all tests pass now
Got rid of unused variables in tests
Initialized graph pointers in sparse matrices to null
Made sure some more pointers are initialized to null and changed some of the spacing style
Everything compiles now, need to make sure examples and applications work
All example code works now