Pra was reborn as Pullwalla

Added

• Multi-Account support as a Pro feature
• Participating, Claimed, & Unclaimed quick filters as Pro features
• Pull Request Characteristics, approval status, merge conflict status, & comment status as Pro features
• Subscribe & Subscribed Preference views to facilitate becoming a Pro subscriber & managing the subscription
• Pro badge communicating which features require a Pro subscription to access when in freemium

Fixed

• Fixed bug with layout of the SideBar

Changed

• Preferences tab interface to cleaner custom interface
• Switch relative dates to form modeled after TweetBot's relative dates
• Branding from Pra to Pullwalla