#157 Additions/Patches for Util & API core files

[Raymond Irving]

[*] Update Examples
[-] Fix DynLayers elements not being destroyed when
_remove() is called.
[-] Fix DynLayer not setting visible/textselectable when
using dictionary object
[+] Add StringBuffer
[-] Fix NS4 blackboard bug when mouse events are
assigned
[*] Modify generateBlueprint(type) to support style
sheets.
> Generate Style Sheets from blueprints by
using lyr.generateBlueprint('css');
[+] Add setClass(c,noInlineStyle) to DynLayer
[-] Fix NS4 bug in DataSource/IOElement
[-] Fix playtAnimation bug in PathAnimation
[*] Modify insertChild(c,pos,usebp) to support positions
[+] Add setPosition(p)

Change are inside CVS