now supports loading data into dict of utterance length data matrices instead of a single large matrix
now supports loading data into dict of utterance length data matrices instead of a single large matrix

amaas/stanford-ctc,xiamike/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,xiamike/stanford-ctc