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

TODO: Implement more testing

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.

it just confuses me to see a running ssh connection to
mirror.ftp-master.d.o without nothing in it, I prefer a clearly waiting
command.

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

Moved Impersonate view to its own app, activate by POST instead of GET, made view work with any user model. refs: #12

It's now causing 'TypeError at /person/proycon can't compare offset-naive and offset-aware datetimes'

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

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