instead of GET, to avoid the Apache httpd URI length limitation.
This means that gfse can no longer use JSONP when parsing grammars, so it
has to be located on the same host as the cloud service.
Also clean away trailing white space in support.js.
Created the folder js and moved minibar/support.js and minibar/pgf_online.js
there, to emphasize their status as app independent support libraries.
There are probably more files that should be moved here.
The cloud apps have been updated, externally hosted apps that link directly
to our server need to be updated too.
