Update Gaia API documents for #42a229cb4df89c0b0424e8aac374bc3652b65878
    Revert "Bug 909839 - Merge JavaScript 'atoms' used by gaia and gaiatest. r=jgriffin r=hfiguiere r=zcampbell"

This reverts commit 2c09f900a6bd9c07891f58027ffab54ad3c176e9.