Mseedindex

- Update to new schema using fields:
* nslcq (ltree type for Net.Sta.Loc.Chan.Qual)
* timerange (tstzrange type for inclusive start-end range)
- Add the following options:
* -table: specify target table name, default is 'timeseries'
* -dbhost: specify database host, default dbserv3
* -dbport: specify database port, default 5444
* -dbuser: specify database user name, default timeseries
* -dbpass: specify database user password, default timeseries

- Update libmseed to 2.13.
- Rearrange src/Makefile to tidy it up and avoid LDFLAGS collision.

- Update libmseed to 2.12.
- Add -TRACE option to turn on libpq connection tracing.
- Add segment (trace) listing to verbose output.

- Initial version.