[font awesome] Upgrade Font Awesome to 4.2.0
[tour] Upgrade to 0.9.3
[xeditable] Null-ify the ajax behaviors in unbind() to make them eligible for GC
[tour demo] Show Info alert when the tour is already taken
Simplify component settings - do not wrap them in IModel when no necessary
Merge pull request #431 from l0rdn1kk0n/simplify-component-settings

Simplify component settings - do not wrap them in IModel when no necessa...
Upgrade Less4j to 1.8.1 that uses ANTLR 3.5.2
Merge pull request #433 from l0rdn1kk0n/less-new-antlr

Upgrade Less4j to 1.8.1 that uses ANTLR 3.5.2
Upgrade to Wicket 6.17.0
Merge branch 'master' into wicket-7.0.0-M1