Ghost: MSR1: 0.5.2

This release contains several new features, major bug fixes, updates to the theme API and breaking changes when using Ghost as an npm module. Please read the [release blog post](http://dev.ghost.org/ghost-0-5-2) for more details. ## Release Highlights **[New]** Admin design refresh **[New]** About Ghost page in settings area **[New]** Post settings menu with meta data & post cover image settings **[New]** Privacy config flags **[New]** Direct mail sends mail without config **[New]** {{is}} helper for themes **[Improved]** Error handling when starting Ghost **[Fixed]** Request entity too large error **[Fixed]** 'Post NOT saved' dialog keeps appearing on Safari **[Fixed]** Author dropdown only shows 15 authors **[Fixed]** Switching between blog and admin can cause blog to lose styling ## Breaking Changes **[Changed]** Ghost no longer starts automatically when [used as an npm module](https://github.com/TryGhost/Ghost/wiki/Using-Ghost-as-an-NPM-module) **[Changed]** Keyboard shortcut for headings is now Ctrl/⌘ + H ## Theme Changes Please see the [theme changelog](http://themes.ghost.org/docs/changelog) for full details of all the changes to the theme API. --- The full [changelog](https://gist.github.com/ErisDS/5c2708e5fdcdf705ea2c) contains a list of all changes.