qfq-bs.css.less: Tweaked less. Added new class for spinner. Changed display type of input[type=file].
FileUpload.js: every callback will be called with the originating file input element as first parameter.
QfqForm.js: Add spinner on upload.

formEditor.sql: fixed typo
qfq-bs.css.less: added BS adjustments to render Checkboxes smoothly.

Gruntfile.js: renamed js files qfq-jqw.* to qfq.*.
package.json: renamed qfq-jqw to qfq

Updated mocks to reflect changes.
Added less/qfq-plain.css.less.