#171 Core API & GUI updates

[Raymond Irving]

[+] Added new examples (See
examples/dynapi.gui.*.html)
[+] Add dynapi.document.writeStyle()
[+] Add HTMLProgressBar
[+] Add HTMLColorPicker
[*] HTMLMenu addItem() will now respect text
directions from image inputs
[+] Add contMode (Container Mode) to HTMLMenu
addItem() text argument
[+] Add HTMLCel() and HTMLText() to HTMLComponent