docs(browser-support.jmd): fix mention of support #384
[skip ci]
fix(js/features.js): upload progress feature detection not accurate #384
chore(test/uploader-demo-jquery.js): remove annoying validation from test js
feat($total-progress): total progress callback & UI representation #384

TODO:
- documentation
- default UI total progress bar should look a bit more appropriate
- unit tests?  (might be too complicated)
fix(js/uploader.basic.api.js): paused grouped uploads don't continue #1061
feat($total-progress): default CSS specific to total progress bar #384

Also updated example templates.

TODO:
- documentation
- unit tests
fix(js/templating.js): valid preview overwritten by not-avail placeholder
docs($total-progress): feature and event docs #384
[skip ci]
chore($jshint): no more /* globals qq */ needed
[skip ci]
test($total-progress): unit tests closes #384
feat(unit/total-progress.js): improve canceling unit test #384
chore($total-progress): inc build num #384
[skip ci]