Update devise to the latest version.
Merge pull request #29 from graspapp/update-dependencies

Update devise to the latest version.
Add info to about page from mockup.
Merge pull request #30 from graspapp/about-page

Add information to about page from mockup.
Display the active page in the navbar.
Merge pull request #32 from graspapp/navbar-active-page

Display the active page in the navbar. Closes #31.
Change header notation. Add requirements and continuous deployment sections to the contribution section.
Merge pull request #33 from graspapp/continuous-deployment-note-in-readme

Add continuous deployment and requirements sections to the README. Closes #33.
Merge branch 'master' into courses