[TYPO3-core] RFC #13428: Caching of the ExtDirect API configuration

[Steffen Kamper]

Hi Stefan,

patch looks good now and applies too. I will review this afternoon.

One thing we should use in JS same as in php - strict comparison
if (typeof Ext.app.ExtDirectAPI !== "object")
if (typeof Object.extend !== "function")

I always try that JS parts pass jsLint test.

We need to define this rule in CGL for JS.

vg Steffen