ClosureCompiler-ajh for 3.8

• SqueakL - The license of Squeak from Apple. The only license we allow for inclusion in base Squeak.
• Image large refactoring - A larger refactoring of the image posted for review. It is meant for the update stream and is temporarily on SqueakMap.
• Stable - Useable by all. Bugs are rare.
• Squeak3.6 -
• Alpha - Useable by daredevils. Probably still full of bugs.
• Squeak3.7 - Released 15 Sept 2004.
• Code changes, but only internal - Code has changed but should not affect external behavior.