Wording
Fixes typo.
Fix event commandline documentation. -c is camera.
Merge pull request #1915 from grokcode/patch-1

Fix event commandline documentation. -c is camera.
Correcting example JSON failure response
Merge pull request #1916 from Hooksie/patch-1

Correcting example JSON failure response
Update docs/userguide/tasks.rst (typo fix)

Typo fix: "This is can".
Merge pull request #1929 from evalapply/patch-1

Update docs/userguide/tasks.rst (typo fix)
Merge branch 'master' into 3.1
Merge branch '3.1' of github.com:celery/celery into 3.1
Bumps version to 3.1.10 and renders README.rst