Stamp 0.3.3-dev
Update readme
switch from psql wrapper to psycopg2
Wrap psycopg2 import, remove debugging leftovers
more debugging leftovers
Drop unneeded columns from pg_stat_plans query
move pg_stat_plans collection to own class
Handle aborted session due to explain errors
Fix failures with older psycopg2 versions
Remove manual postgres array handling

This is done by psycopg2 by now
Stamp 0.4.0