NSFW flag in Settings Service, checkbox sets it
RedditAPI calls set obey_over18 based on NSFW flag
getSubredditPosts uses getSubredditPostsSortedBy with 'hot'
Manually filter NSFW posts
Merge branch 'master' into nsfw_flag

Conflicts:
	app/js/controllers/settings.js
	app/js/services/reddit_api.js
	app/views/settings.html
Refactor getSubredditPosts
Test getSubredditPosts manual parsing of NSFW posts
Also manually filter NSFW posts from subreddit images