Refined the UI and improved overall stability.

- updated with new software and supports iPhone 6.9" screens

- removed the Qixel logo at the top of exported images

- updated with new software
- removed Twitter image saving option
- updated some icons and links

- updated screenshots

- improved resolution for all iPhone devices
- The 'Allow Photos' permission now pops up when the app is first open (Press OK to save images to your device)

- 2 new colours added (flesh colour and lime green)
- Improved interface with clearer buttons
- Added high-res PNG export
- New app icon
- removed Facebook integration
- Removed sound effects
- now a universal iOS app

- updated software
- added new icons and screenshots

- Added the ability to send a picture by email, Twitter and Facebook.
- Added a 'Tools guide'
- Minor improvements