Gets util working again.
Handles being unable to multilaterate a single aligned event.
Adds readme message with piping example.
Renames event generation to zero detection.
Adds max delay estimation.
Adds units to constants.
Merge remote-tracking branches 'josh/master', 'dselassi/master' and 'fhats/master'
Makes multilateration handle degeneracies slightly faster.
Does dropped event detection in alignment. Multilateration doesn't support this output yet, though.
Converts to struct packing for piping.
Merge branch 'master' of github.com:hashbrowncipher/doppler

Conflicts:
	alignment.py
	multilateration.py
	pipe_util.py
	util.py
	zero_detection.py
better? zero detection
Merge branch 'master' of github.com:hashbrowncipher/doppler

Conflicts:
	alignment.py
	multilateration.py
	util.py
	zero_detection.py
changed to timestep return
Merge branch 'master' of github.com:hashbrowncipher/doppler

Conflicts:
	filtering_utils.py
	pipe_util.py
Converts to using timestamps until the last moment. Puts format strings in pipe_util.
Merge branch 'master' of git://github.com/mfield/doppler

Conflicts:
	zero_detection.py