Make <textarea>s larger
Update the guide for Ruby for Ruby 2.1
Allow hooks to be called via HTTP POST as well

GitHub pings web hooks via HTTP POST. The `get` method results in 404 errors.
More info: https://help.github.com/articles/post-receive-hooks
Disable protection against CSRF in HooksController

HTTP POST requests to these URLs don't need this kind of protection and won't
work if it is enabled.
Reset GEM_HOME before running script/lectures

The exec call in this task keeps biting us. I'd say exec is evil. It inherits
a ton of shit from the current process' ENV and this shit messes up the exec'd
process.

For example, here we have a GEM_HOME set to this project's gem bundle, which
is somewhere in the Capistrano shared path. However, when we want to build the
lectures, we don't want to keep gems in this bundle. Code annotation in the
lectures repo is broken due to this, for example.
Go homework guide
Oops. Forgot to mention `package main`
Typo
Use Ruby 2.1 for the site

If we don't use 2.1, then skeptic doesn't work properly for solutions
with the 2.1 syntax–it raises an exception, as expected.
Make user's photo colors depend on their points
The more points a user has the more colors there are on their photo
Change user's photo route in leaderboards to the default one
Change the style of the application
Changed the styles around the app
Changed styles and added a motivational video on home page