Tested new det -> db script against old scripts.

The det files aren't read in the same order, so the IDs aren't
the same. However, except for a few more decimal places in the
real numbers, the table rows look identical.
Removed obsolete est_data and data_array classes.
Finished rmg_process.
Removed obsolete processing scripts.
Added rmg_process to serv/CMakeList.txt.
Update rmg_det_to_db
Extended qraat.csv to read a DB table.
Implemented `rmg exporttx`.

Reads txlist from database and writes tx.csv.
Catch ImportError on MySQLdb module in est.py and csv.py.

Signed-off-by: Christopher Patton <chris@qraat-server.(none)>
Fixed bug in rmg_det_to_db.

If unable to resolve the site or tx ID when inserting rows
into the DB, emit a warning and try the rest of the rows.
Previously, catching the exception short-circuited the
for-loop and didn't try to insert the rest of the table.
added manual python scripts for position estimation
added gps data to database
Merge branch 'position_estimation' of https://github.com/QRAAT/QRAAT into position_estimation