Username change requests

[matthew]

Following a recent Forum Council meeting we have decided to relax the prohibition on changing usernames.

However, 2 points

• Make sure that any change you request is what you want - we will only change it ONCE.
• Please make sure to give us 3 alternatives, we don't want to have to keep asking for new alternatives if your choice is not available.
• If we find that the volume of change requests increase dramatically - we will revert.