a less noisy Travis CI bot IRC notification
Merge pull request #3971 from Mailaender/silent-travis

Made Travis CI bot IRC notifications less noisy
Update README.md
Update .travis.yml

the channel does not allow notices from outside
Use scale in RenderSimple.RenderPreview. Fixes #3970.
Re-enable travis notices without joining.

This reverts commit dbb38e3a426249e762d636bbadc232b329c5d970.
Merge pull request #3977 from pchote/travis-fix

Re-enable travis notices without joining.
Merge pull request #3976 from pchote/scale-fix

Use scale in RenderSimple.RenderPreview.