Added LayoutDotSyntaxExample project.
Fixed JGLayoutDotSyntax so it actually works.
Added working code to LayoutDotSyntaxExample.
Enhanced JGLayoutDotSyntax usage. Updated README.

Made a minor compromise for the sake of simplicity: lonely number objects must be wrapped with the typealias JGLP().

This slight change avoids the need for the "as" operator when adding/subtracting a constant or setting a multiplier:

`(blueView.layoutLeft as JGLayoutParameter) + 10.0`
is now simply:
`blueView.layoutLeft + 10.0`

but this also means that this:
`blueView.layoutWidth = 190.0`
is now:
`blueView.layoutWidth = JGLP(190.0)`