- moved the configuration format and parsing to Config::IniFiles
- sanitize URL and session parameters
- added confugrable URLs (primary_url, gbrowse_url) to result pages, configurable per database
- there is now a database stanza in the config:
[DB NR]
name=NR
type=protein
description= the NR database (protein)
primary_url=http://mydb.org/?query=%s
gbrowse_url=http://mydb.org/gbrowse/citrus/
[DB NT]
....
- there is now a program stanza:
[program blastn]
name=blastn
type=dna
description=the good old BlastN
[program blastp]
.....

- the query form rembers more settings now
- parameters program, database, and task can now be controlled via URL parameters