Subreddit tabs loaded
Removes unused template.
Load subreddit from subreddit menu.
This is a checkpoint before merging frontpage.html and
subreddit.html to the same file. Instead of pushing a new screen
everytime we select a subreddit, we want to reload the current
screen with the selected subreddit. Issue #1.
Subreddits can now be loaded from the sidebar.
Improvements still needed. Back button needs to know whether
you came from front page or a particular subreddit. Issue #1.