Install LessResourceReferenceFactory with BootstrapLess.install(app)
Simplify BootstrapRadioChoice.

It can use the new LabelPosition from Wicket 6.17.0
[ladda] Add LaddaAjaxLink and LaddaAjaxButton (intergration with http://msurguy.github.io/ladda-bootstrap/)
[ladda] Add javadoc and clear the data in complete()
[ladda] Use Bootstrap's Button size rather than Ladda's

Rename Style to Effect
[ladda] Javadocs and cleanup
[ladda] Code formatting
[ladda] code formatting
Merge branch 'master' into wicket-5650-simplify-radio-choice
Merge branch 'master' into less-resource-reference-factory-auto-install
Merge pull request #421 from l0rdn1kk0n/wicket-5650-simplify-radio-choice

Simplify BootstrapRadioChoice.
Merge pull request #420 from l0rdn1kk0n/less-resource-reference-factory-auto-install

Install LessResourceReferenceFactory with BootstrapLess.install(app)
Merge branch 'master' into ladda
Issue #432 - Use webjars for spin.js
remove local copies of spin.js (we use it thru webjars now)
Merge pull request #432 from l0rdn1kk0n/ladda

Ajax link and button with loading effect
Merge branch 'master' into wicket-7.0.0-M1