Merge branch 'release/1.0.0-beta4' into develop
added hello world celery task and a django command
Merge pull request #110 from researchcompendia/celery

added celery tasks and django command to check download availability for Article files for #93
updating deployment information
changed heading levels for deployment docs
Removing authorship from compendia forms until issue #119 is resolved
no pylibmc yet
new error pages
Merge branch 'hotfix/1.0.0-beta5'