added parseBool()
parseBool() attempts to parse a non-boolean-type input as a boolean
added array element selection/filtering to anje.ui.template.populate()
added anje.data.select() to support this; it takes an array of objects and string of selection criteria, in the form of jQuery/CSS -esque attribute selectors, and returns an array with the subset of objects which pass the selection criteria/filter.
fixed some comments