Version 2013-09-23 adds handling for 1 level of "PHP naming"

When supplied a single data object argument, floodling will correctly
handle one level of nested values:

{
	a: blah,
	b: {
		x: blah,
		y: blah
	},
	c: blah
}

In this case, floodling will look for inputs with the following NAME
attributes:

a
b[x]
b[y]
c

…and set them all to have value "blah".

Also fixed a misplaced var declaration and added a conversion so null
values would be interpreted as false when working with checkboxes.