Revert "Revert "ignore hidden files""
wrong commit to revert
This reverts commit 3d6ae7bdebe17002923886d4f9f70c39644550a6.
Revert "saves wave to beaglebone"
this commit is on the wrong branch (corr, not master)
This reverts commit ceb7b2f51e29da6f8401162e823922fa78e081e9.