Exclude files with DFSG licensing issues from tar balls (#1230)
Add translation update script with transifex issue workaround (#1195)

Script will do an lupdate run on mumble_en.ts, apply the duplication
of numerus tags workaround for the transifex missing string issue
(see #1195) and then create a commit with the updated translation
file. This file - at least for now - is meant to be run manually.
Make sure to check the created commit before pushing.
Translation update

Updating 'mumble_en.ts'...
    Found 1572 source text(s) (4 new and 1568 already existing)
Add transifex client configuration for project.

See http://docs.transifex.com/developer/client/ for the documentation
on the client. The two basic actions we need are:

    tx push -s    Pushes a updated source translation to transifex
    tx pull -af   Downloads all current translation overwriting the
                  existing ones.

Completely new translations have to be added manually to the
mumble.pro file to be picked up during compilation.
Remove flawed MX host existence check for cert wizard (#1178)

The certificate wizard tried to verify the host of email addresses
input by users by resolving their A record. This is flawed as
a host isn't required to have an A record for receiving mail. The
correct way would be to check the MX record instead. This isn't
possible in Qt 4. As the feature is of dubious value anyways this
patch simply removes it. Now every email matching (.+)@(.+) is
accepted.
Merge remote-tracking branch 'upstream/master'