Display published status on pages in DEV environment.
Rename footer link
Merge branch 'master' of https://github.com/ucam-cl-dtg/isaac-app
Rename mobile footer link
Point featured_problems page to correct resource
Move featured_problems page to extraordinary_problems
Release v0.1.6
Merge branch 'master' of https://github.com/ucam-cl-dtg/isaac-app
Bump version number
Match site protocol for API when developing locally.
Rename simultaneous equations tag.
Merge branch 'master' of https://github.com/ucam-cl-dtg/isaac-app into Honest