INSTALL: Use the %L modifier for %u variable in password_query and user_query.

VMM/domain: set_{directory,transport} make sure the domain is new. Assertions could be optimized away.

VMM/cli/subcommands: Added 'auto postmaster' to domain_add().

VMM/cli/handler: Added support for random passwords in user_add().

VMM/transport: Small error message 'improvement'.

VMM/config: Added option mailbox.format to the configuration check.

update_config: Set pyPgSQL, maybe there is no psycopg2 installed.

man5/vmm.cfg: Added description for new settings in section database.

Updated INSTALL and setup.py.

VMM/handler: Added support for psycopg2.

VMM/cli/main: Adjusted _get_handler() to changes in config module.

VMM/config: Extended configuration check and raise only a ConfigError. Added new settings 'module', 'port', and 'sslmode' to the database section.

VMM/…: Provide parameters as tuple to cursor.execute().

VMM/handler: Small code cleanups.

VMM/common: Reformulated error message in exec_ok.

VMM/cli/config: Except the VMMError from exec_ok in configure().

VMM/config: Use common.VERSION_RE, instead of defining the regexp two times.

VMM/common: Made the version re pattern object accessible as VERSION_RE. Small 'global …' cleanups.

VMM/cli/handler: Don't perform config and environment checks twice.

VMM/cli/subcommands: Added subcommands configget and configset.

VMM/cli/config: CliConfig.set raise a ConfigError, if the new value could not be set.

VMM/cli/main: Except more errors and handle them correct.

VMM/config: LazyConfig._get_section_option check for empty section/option names.

VMM/…: Unified messages and removed non-ASCII quotes. VMM/account: Added TP-comment back. Was accidentally removed in changeset f9a6b6701cf9. Refreshed po/vmm.pot.