Toolbar: Leave anchors marked data-role="none" unenhanced

Fixes gh-6875
Fieldcontain: Changed selector to take hidden form elements into account

Fixes gh-6701
Demos: Set Ajax to false on link to External Panels page

Fixes gh-6982
Closes gh-6984
Readme: Removed 'grunt zip' and added test exclusion doc
CI: Failure to send report to coveralls should not be fatal

Fixes gh-7006
Collapsibleset: Modify demos to use non-deprecated initSelector

Fixes gh-7065
Build: Add load-grunt-tasks
Tests: Output tests reports in _tests & .gitignore it

Fixes gh-7029
Demos: Updated page sections info on intro page

Fixes gh-7052
Build: Updated AUTHORS.txt
Textinput: Correct padding-right for input with clear button

Fixes gh-7011
Closes gh-7072
Icons: Same size for all icons and center the image

Fixes gh-6356
Closes gh-7031
Icons: Alphabetise icon examples in the demos
Icons: Fixed markup and style guide issues on grunticon demo page
Button: Correction of wrong border-radius property

Fixes gh-7073
Closes gh-7074
Toolbar: Corrections in back button info on demo page

Fixes gh-6835
Closes gh-7075
Collapsible: modify typo in _setOption

Fixes gh-7054
Collapsible: Correctly inherit options from set and fix iconpos handling

Fixes gh-7044
Fixes gh-7062
Textarea: Use feature detection to avoid setting height to 0 on IE8

Also replaces the immediate height update with a timed one, because the
immediate height update issued from _autogrow() is having no effect in IE.

Fixes gh-6998
Textarea: Save and restore scrollTop during autogrow height update

Thanks go to Kangsik Kim <allsteady@gmail.com> for the idea to set scrollTop

Fixes gh-6898