Relicense: GPL -> BSD

[oliver-sanders]

We are trying to relicense this repository from GPL (V3) to BSD (three clause) to allow it to be used for a wider range of purposes. In particular we would like to open this code to potential use in GitHub Linguist which would allow Cylc language detection and syntax highlighting to be added to GitHub. Note, this relicensing applies only to this repository (cylc-textmate-grammar), and not any of the core repositories.

I have copied across the CLA from the main repository (the one you've previously agreed to) unchanged. By re-agreeing to the CLA you agree to:

• The terms of the CLA
• The new license

All code authors, if agreed to the changes, please raise a PR to this branch adding your name to the CLA and copying any relevant lines from the .mailmap file from the on in cylc-flow. (make sure your name in the contributing section exactly matches that in the mailmap):

• [x] @oliver-sanders
• [x] @MetRonnie
• [x] @wxtim
• [x] @kinow

Additionally, @markgrahamdawson, as you merged a commit, your name shows in the project history, it would make it easier if you could sign too:

• [x] @markgrahamdawson

Check List

• [x] I have read CONTRIBUTING.md and added my name as a Code Contributor.
• [x] The "check contributor list" test will pass once all names are in the changelog and the mailmap is complete.

[kinow]

Incoming PR in a few minutes…

[kinow]

I hope this is correct: https://github.com/oliver-sanders/cylc-textmate-grammar/pull/1

[MetRonnie]

https://github.com/oliver-sanders/cylc-textmate-grammar/pull/2

[oliver-sanders]

All consents gathered, thanks all.