Make disable scrolling optional for offcanvas. Fixes #193
Also add .btn-file transform: scal for Chrome. #157
Combine `.fileinput` and `.input-group`. Fixes #203
Fixed offcanvas position (only left was working). Fixes #195
Fixed calculating the position when 'auto' is used.
Off canvas navbar is positioned to the right by default and can be placed left with `.navmenu-fixed-left`.
Added link to off canvas navbar example in other offcanvas examples