Extended class est.

It now stores signal data in NumPy arrays.
python/est.py: Reverted est, creating alternative est2.
Set up to work on probability calculation.

I'm hijacking the functionality of bearing_likelihoods. I will
likely create an alternative for this class that fits our needs
better (analogous to est2).
Working on bearing probability calculation.

The code looks right, but the distribution doesn't. I'm going
back to make sure the data is right.
Need to fix bearing probability calculation.

Write class bearing on Monday.
Corrections to prob. dist. calculation.

NumPy doesn't have enough precision ... also I'm now changing
directions a bit.
Merge branch 'master' into pos_conf
Restructured python/postion.py more logically, testing.

Wrote benchmark program ser/pos/run.py.
Continuing changes to python/position.py.
Updated serv/pos/rmg_position_auto, finished verifying.
A little clean up.

Renamed run.py to test.py.
postion.py: class halfplane calculates inequalities correctly.
postion.py: class bearing.calc_constraints().
qraat.position.calc_windows()

Generator of uniform time windows over a set of est's. Modified
the scripts in serv/pos to use this for windowing. `
Moved qraat.est.est2 to qraat.position.signal.

Wrote prototypes for things to implement in qraat.position.
I'll think about combining qraat.est with qraat.position.signal,
but it's not too crtical at the moment.
Wrote qraat.positiion.bearing.jitter_estimator().
Maximum likelihood added with positions to database.
python/tracks.py: Working on tracks.
End of the line for connected components.
Working ...