Main: Bugfix, don't use args.options (might be undefined)
DB/osm2pgsql: remove way/tags multi-column indexes
Documentation: move config options to extra file
Remove options (-o), merge into config (-c)
CHANGELOG/README: updates
Documentation: --hstore-all when initializing database is no longer required
Merge branch 'branch-0.9' into osm2pgsql-layout-wo-hstore
DB/osm2pgsql: document config options