celery: also import core tasks if available
Fix document title for single machine/key view
Merge pull request #256 from mistio/fix_document_title

Fix document title for single machine/key view
Merge pull request #259 from mistio/fix_default_user_image

Fix url for default user image
Automated build of mist.js & mist.css
Merge branch 'staging' of github.com:mistio/mist.io into staging
Automated build of mist.js & mist.css
Merge pull request #260 from mistio/core_tasks

celery: also import core tasks if available
Merge branch 'master' into staging
Merge branch 'staging'