Started to allow customization of the banner
Adding field for configuring the blog's banner + displaying banner only if user has the right to
Banner modification interface started to go well
Start of the position block
Refactor for setting position
Refacto with string repeat parameter management
Start refacto update banner background image
Update the position of the image is make in the updateBannerBackgroundImage method
Update default value for banner image background position + link position to repeat
When repeating on multiple line return to the previous selected position instead of the top left corner
Updating banner configuration is now possible, except for the background image + event for banner configuration
Adding resource picker in the edit page of the blog's info