adds feature to have a json-installer-modules dir in site dir
splits default and site modules lists visually
adds less verbose way of declaring attributes, like ["name","value","type"]
adds feature to have a title for pages
addds feature to have page children
fixes bug, where titles could not be assigned
makes json dependencies compatible with multiple json modules files folders
makes page name optional, if title is given
adds feature to have a group property to json files, fixes small issue with 'hasSelector'
adds tabs to group modules by source (modules dir or site dir) and group, defined in each json file