Merge branches 'schema_update' and 'estimation' of https://github.com/QRAAT/QRAAT into schema_update
Added t to build tree.

Accepts a UTC timestamp as its single command line parameter and
outputs a local time string. It has a stupid name.
Modified `rmg exporttx` to use new schema.
det -> DB processing for new schema.

(Needs test.)
Updated signal filter for new schema.

Needs verification. (Previous commit has been trested.)
Merge branch 'master' into schema_update
Merge branch 'master' into schema_update
Modified rmg_dbstats for new db schema.
Working on time filter script.
Reading Sean's code.
Merge branch 'master' into schema_update
Updating signal filter.

Fixed mechanism for grabbing band filter parameters for the
transmitters, cleaned up output.
Fixed automated filter.
Merge branch 'master' into schema_update
Merge branch 'schema_update' of https://github.com/QRAAT/QRAAT into schema_update
Automated pos. est. uses time filter.
Merge branch 'jey_qraat_site_0.1' into schema_update
Updated rmg_position to use time filter.
Enabled time filter.
Merge branches 'schema_update' and 'sean_time_filter' into sean_time_filter