The purpose of this feature is to create theme for every object of the AppKit. Previously, we could not theme object like CPColor, however CPColor could be very interesting to theme, value like alternateSelectedControlColor were hard coded in the framework. With this PR, we can now theme a CPColor and take some values from the current theme of the application. Then, this PR offers the possibility to refactor the themeDescriptors, some classes contains theme attributes for other class (CPTabView and CPTabViewItem for instance).
How doe it work ? A new category _CPObject+Theme.j has been added to the AppKit. This category contains every theme methods needed to theme an object (previously this category was in CPView). We add utils method like _encodeThemeObjectsWithCoder: and _decodeThemeObjectsWithCoder: in this category to be able to code and decode easily a coder for every object (this is generic).
This PR did not refactor the themeDescriptors, it only add this new mechanism for the methods alternateSelectedControlColor and secondarySelectedControlColor of CPColor. We will need to refactor that gradually
* require common.jake first
* require Objective-J/Cappuccino stuff only when needed (automatically requiring these caused too many problems)
* remove useless shebangs, cleanup whitespace
