merged changes from default(cfd29e65e4f2)

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.

vmm: Renamed to VirtualMailManager/cli/main.py. Splitted subcommands out to VirtualMailManager/cli/subcommands.py. vmm: New created with minimal code.

VMM/cli/handler: CliHandler.user_password: Only prompt for the password if the Account exists.

VMM/account: Made Account._services available as account.SERVICES.

VMM/{,cli/}handler: user_add: Check earlier if the account exists.

VMM/domain: Added missing comma in Domain.get_info's SELECT list.

VMM/handler: Updated Handler.user_{disable,enable} methods to accept a list of services. man/{,de/}man1/vmm.1.rst: Updated userenable/userdisable part.

VMM/account: Reworked methods enable/disable in order to accept multiple services.

VMM/{account,handler}: Account delete, use the boolean keyword force too.

man/{,de/}man1/vmm.1.rst: Updated domaindelete part.

VMM/domain: Simplified Domain.delete() related methods and their arguments, VMM/handler: Adjusted to the changes in the domain module.

VMM/handler: _make_home() Create the domain directory if it doesn't exist for some reason.

VMM/account: Replaced property domain_directory by domain.

VMM/common: Removed unused import.

VMM/handler: Use more common.lisdir() in Handler's methods _chkenv, _delete_domain_dir, _delete_home, _get_disk_usage, _make_domain_dir, and _make_home. Handler._make_home(): Also check if the domain directory exists.

VMM/common: Replaced function is_dir() by lisdir(). VMM/{config,mailbox}: Adjusted to the above change.

VMM/handler: Reworked methods _get_disk_usage, _delete_home and _delete_domain_dir. Deleted method _isdir.

VMM/constants: Added MIN_GID and MIN_UID.

VMM/mailbox: Removed accidentally committed debug print statement.

VMM/…: More PEP-8 fixes; eliminated __names. VMM/emailaddress: Fixed™ methods __eq__ and __ne__. (I'm not pylint's nanny.)

VMM/transport: Converted _mixedCase method names to _lower_case_with_underscores. Added missing docstrings. Fixed™ methods __eq__ and __ne__. (I'm not pylint's nanny.)

VMM/*: Made all modules names lowercase, adjusted imports.

VMM//{,cli/}Handler: PEP-8-ified the Handler classes: * converted CamelCase method names to lower_case_with_underscores * eliminated __names * added missing docstrings

VMM//{,cli/}Handler: Reworked configuration related parts. Renamed attributes _Cfg -> _cfg; _cfgFileName -> _cfg_fname. Renamed methods __chkCfgFile -> __check_cfg_file; __findCfgFile -> __find_cfg_file. Added missing docstrings.