Interface Redesign for IOS 7

[SantiagoTorres]

After a quick idea-storm, the GUI redesign will be pointed towards the next IOS7 release. We decided on the following:

1. We should prepare this release for about 1 month after the release of the current version

2. IOS7 GUI will be separated in different NIBs, and use code to decide whether we are loading the IOS7 nib or the IOS6.1 one.

3. We are going to redesign everything. I'll sum the whole idea of the theme

• Removing the textured tints and add a new gradient/flat color tint for the nav bar
• Removing the textured background and add ta new gadient/flat color bg
• Redesigning the icons to match the new theme (nothing really complex, inverting colors and make sure the chalk texture goes away in every one of them)
• Redesign the Matrix views.
• Redesign the credit views.
• Redesign the calculator view
• Redesign the Decoder view
• Redesign the resCalc view

4. The Decoder view seems to be going to a great direction with this proposal by @aparedes:
   
   
   

5. What we know:
   We need to get rid of textures and adopt a flat white/black/gray-or-anything-of-the-like theme with or without gradients.
   We need to create separate xibs and resources, I can go for this if everyone wants.
   We need to tweak the resistance-power function to create a distributable input between the bars, in case we go for @aparedes suggestion or something similar.

6. We might consider this to be Release 2.0?

[SantiagoTorres]

Some sketches for the base converter, I wanna see some comments here...

These are sketches, so don´t expect exact corners or anything.