Signed-off-by: Mattia Rizzolo <mattia@debian.org>

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

This is not simply fixing up spelling and grammar, but a full (ish)
review of English language strings and translation structure. This lays
the groundwork for a more formal translation round at a later date.

Some of the phrasing will inevitably be coloured by en_GB preference,
but I don't feel any shame about that.

TODO: Implement more testing

To avoid FD approval to be challenged if a DD has a doubt, comments on
an approval requirement will block the RT ticket sending until either
the FD/another FD adds a new statement or DAM adds a statement.

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

Approval becomes a Requirement of a process. When this requirement is
fulfilled, it makes the process become approved, whatever the state of
the other requirements.

Depending on the status of the approver, the StatementCreate view either
spawns a ProcessApproveRT op to send immediately a RT ticket, or just
spawns a ProcessApprove op, to approve the process.

The approval statement contains the RT ticket that is sent or not. In
the case it's not, a housekeeping job could iterate through the
processes on a regular basis and as soon as the approval requirement is
old enough, spawn a RT ticket using the approval statement.

To avoid issues with testing instances, the ProcessApproveRT has been
reworked in order for the RT part to be mocked, returning 0
systematically.

Allow everyone to download signed statements as a mailbox, but filter contents as appropriate. refs: #6

Removed some visitor uses in mia, and moved some leftover mia templates from process to mia/. refs: #11

Closes: #892578

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

Django is complaining if the return type is not a string in case the
sring is empty.

Adding gettext module to manage translatable strings.

Updated tests and logic after ecc1f7de (Allow DD_U to apply to become DD_NU)

A small number of uploading Developers find that
they no longer need or want uploading privileges,
but do wish to remain a Developer. This change
allows applications to non-uploading DD in the
normal way.

For this application, only an intent is required.
Everything else is superfluous or already known.