indicates the endline code for various environments
Adds csv files in the file formats supported by datafile
Major update of bytecode:
 - Iterative linear solvers using CUDA
 - interpreter.cc decomposed
Adds new preconditioners in iterative solvers
Adds a block Kalman filter using GPU
Use type compatibles with Matlab (size_t instead of int)
Revert "indicates the endline code for various environments"

This reverts commit f16a8b1658d5fa6481b0804c29b3e03e61a8c08f.