Create settings for features optional #131

Hi, I really like this plugin. However, I'd like to keep some features, such as tooltip or keep users starring/forking your repos from the newsfeed. In my case I don't have as many and I appreciate it when happend :smile:

Despite it would need a big refactor, every user could set as they would like to.

Something like:

• Linkifies branch references in pull requests
• Linkifies issue/PR references in issue/PR titles
• Adds a 'Releases' tab to repos (g r hotkey)
• Adds a quick edit button to the readme
• Shows current filename in the sticky pull request header
• Adds blame links for parent commits in blame view
• Improves readability of tab indented code
• Adds a shortcut to quickly delete a forked repo
• Adds ability to minimize/maximize files in a pull request diff
• Adds links to patch and diff for each commit
• Differentiates merge commits from regular commits
• Hides :+1: :-1: comments and shows their count in the sidebar
• Supports indenting with the tab key in textareas like the comment box
• Automagically expands the news feed when you scroll down
• Hides other users starring/forking your repos from the newsfeed
• Prompts you when pressing Cancel on an inline comment in case it was a mistake
• Moves the dashboard organization switcher to the right column
• Removes annoying hover effect in the repo file browser
• Removes the comment box toolbar
• Removes tooltips