INI setting for javascripts/css to include on page

*Title: INI setting for javascripts/css to include on page.

Incentive:
Add a new setting and section to the design.ini
- JavaScriptSettings
- JavaScriptList

*Documentation:
1.
JavaScriptList - Array of js files which are included in the pagelayout file.

When you add a new file to this variable it will be automaticaly included in the pagelayout 
file of admin and base designs. For you own design you can look 
to the design/admin/templates/pagelayout.tpl how it is done there and implement the same 
in your pagelayout.