Pre-Release with LOTS of new features

Important: Pre-Release

This is a pre-release because we've implemented a LOT of new features but the senior architect will be away till middle of August so a final release will probably not happen till then.

So if you want to be safe, please use the latest 12.02.01 instead.

Note: Internally we've prepared some Apps (Content, Blog, Fancybox Gallery) to use these new conventions, but we haven't officially released them yet. So if you want to test them, you'll need to get them from the github code.

Highlights in 12.03

1. New global Settings System
   1. With global WebResources which ensure that all apps use the same version of Bootstrap, Fancybox etc.
   2. With global Images settings which ensure all apps use the same image sizes
2. New Link.Image(...) helper #2471
3. New Input types
   1. @number-dropdown
   2. @empty-message to show messages in the dialog, possibly even based on rules #2470
4. Enable App-Reset to previous state to also work on the default Content app #2453
5. Create Page.Activate("feature-name") api to activate features like turnOn #2434

Other

1. Refactored/simplified IDynamicEntity and IDynamicEntityWithList to be the same object #2463
2. Enabled debugging of DynamicValue Get with new param debug: true or by doing Content.SetDebug(true) #2461
3. Enable an internal feature to allow navigating to sub-entities using their titles #2462
4. Enhance @string-dropdown and @number-dropdown to have nicer key-label notation #2468 and also to support escaping characters #2469
5. Enhance content-type information to show some infos in the items-list in dialogs #2465