[ts.parse] implement output of ts manifests
[ts.parse] fix name guesstimation in guess_ts_mf

If a timestream name was given including a trailing slash, then the name
guessed (by os.path.basename) was ''. So, we use rstrip() to remove any
trailing slashes.
[test_parse] add test for get_manifest

An additional test that ensures we remove trailing slashes from
timestream paths, so that their names are guessed correctly
[ts.parse] add ts_iter_numpy

Iterate thru image filenames, returing tuples of (img_path, img_cvmat)
[ts.parse] better chronological iterators

Fix up the API of parsing thru images by time, returning None for
missing images.
[travis] install pyopencv using apt-get
[setup.py] add pyopencv to install_requires
attempt 1 to fix opencv install
[travis] fix up linking of cv2 modules
[setup.py] remove pyopencv, it's broken thru pip
[travis] remove debugging stuff from travis
Merge pull request #3 from kdmurray91/dev

Merge in latest WIP