make path of uasr and uasr-data a config key
display speech recognizer output in octave
add feature to speech recognizer script

config key to store frequency domain data in temp dir in order to
improve speed during subsequent runs
add feature to speech recognition script

algorithms: eight, nsFix (fixed null steerer with known noise source)
improve speech recognition script

data folders use the angle in their name instead of the angle count,
which allows splitting the whole experiment into smaller chunks (i.e.
one process for each angle, without having all processes write into
"algo1")