New implementation newer inserts 'for' field into Received field.
It could reveal details of address aliases and forwarding used by
server, we don't want to make this possible.
Closes#135.
PostgreSQL driver uses the rather weird DSN format:
"dbname=maddy user=maddy sslmode=disable".
This commit allows using this format without having to wrap it in
quotes.
Most previously existing ways to specify Config/State/Libexec
directories are removed. Now they can be set only using
command line flags. Generally, having multiple ways to set these
values can be confusing and also believed to be unnecessary.
All relative paths in the configuration are now interpreted
relatively to the State directory.
Additionally, new value is added: Runtime directory. It will used
in the future for temporary files.
All directories that should be writable will be created on startup
if possible and checked for writebility.
It makes sense to allow having default of bool flag to true and
allow writing 'name no' to disable it. This allows getting rid of
"dont", "no" etc in names or certain directives which are meant to be
enabled by default. IMO 'do_x no' looks better than 'dont_do_x'
Root package now contains only initialization code and 'dummy' module.
Each module now got its own package. Module packages are grouped by
their main purpose (storage/, target/, auth/, etc). Shared code is
placed in these "group" packages.
Parser for module references in config is moved into config/module.
Code shared by tests (mock modules, etc) is placed in testutils.
