fixed slow version of mi
Merge branch 'NonPerChanel' of github.com:panmari/matlab_rpf into NonPerChanel
using now input/output colors & initial direct value differently
introduced conversion from output_color to input_color now necessary

Could also be solved in make_struct, but imo easier this way
commented (out) various debugging code
minor bugfixes to make it run
switched back to pengs library for computing mi
added some stuff tmp stuff to gitignore