fix stepsize bug: remove useless stepsize member of mc
add get takestep to modify stepsize from outside
add set stepsize, fix test
add get stepsize
fix swap every n step bug
fix wrapping bugs
fix step passing bug
fix cpp test
start adding test
resolve conflict, empty lines
fix takestep test
Merge pull request #42 from kjs73/stepsize

Stepsize
Merge remote-tracking branch 'origin/master' into time_series_moving_average
add cpp test for histogram
add cpp test histogram
add shape test to hist test
Merge remote-tracking branch 'kjs_fork/time_series_moving_average' into time_series_moving_average