Started working on v2
Removed unused code
Enable C++11 for vexcl by default
Test SPMV for each CPU backend
Travis-CI configuration
Merged builder and solver classes into amgcl::amg
Only test available backends
Make backend::is_eigen_type compatible with g++ v4.6
Set (and find) VexCL backend, fix warnings
More backend tests
Fix bug in level construction
Implement nonzeros for block_crs
Use bloc_prod() in block_crs implemetation of spmv
Catch non-implemented interface at compile time
Added solver test
Fixed sign mismatch warning
Fixed a bug in block_crs backend
Save some memory in examples/solver
Added bicgstab iterative solver
Added GMRES solver