version 0.5dev
fix saving of last_duration
version 0.4.1
register entry in changelog
Merge branch 'master' into dev

Conflicts:
	CHANGELOG.md
	clogd
convert database schema to postgresql
install psycopg2
static versions on requirements.txt
migrating storage from SQLite to PostgreSQL
remove unused import
deduplicate output
helper script to migrate data from SQLite to PostgreSQL
remove db rule from Makefile
update changelog
update bottle to latest version
add config_example.yaml
update README for PostgreSQL configuration