By making a contribution to this project, I certify that:
(1) I understand and acknowledge the licence under which this project is available at the time of the contribution ("the upstream licence").
(2) I understand and agree all contributions can only be accepted (and therefore must only be offered) under terms which allow the resultant work to continue to be available under the upstream licence ("compatible terms").
(3) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved.
Therefore, I certify that this and any subsequent contributions I make:
(a) Was created in whole or in part by me and I have the right to submit it under compatible terms; or
(b) Is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source licence and I have the right under that licence to submit that work with modifications, whether created in whole or in part by me, under compatible terms; or
(c) Was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it.
The text of this license is available under the Creative Commons Attribution-ShareAlike 3.0 Unported License.