Fix strict error about references

reset() takes a variable by reference, so previously this was an error.
Merge pull request #44 from silverstripe/minor

Fix strict error about references
Adjusted notification defaults.
Requesters are no longer messaged to be told that they approved or rejected something.
Adjusted UI to prevent progress animation appearing outside the bounding box (overflow issue)
Merge pull request #45 from tractorcow/pulls/tweak-messages

Adjusted notification defaults.
Update deploy.migrate task
- dev/build run on a single server to prevent multiple synchronous database operations in a replicated environment
- ensure that 'sake dev' is run at the conclusion to every flush to ensure cache initialisation
- cleanup code so real humans can read it too
Merge pull request #46 from tractorcow/pulls/deploy-migrate

Update deploy.migrate task
BUG Pipelines can now be removed
Merge pull request #47 from tractorcow/pulls/remove-pipeline

BUG Pipelines can now be removed