Add pointer property

Because of the new clickable features.
Hide loading animation after media has been loaded

Showing the animation looks realy annoying behind smaller images or images with transparent parts.
adjusted swipebox.scss according commit "Hide loading animation after media has been loaded(...)" f95c6d0128dd108b7a034126bbb3d5dca13fc4b9
Fixed minor errors.

Added semicolon on line 53, and replaced "!=" with "!=="
Merge pull request #156 from iamdmitrymayorov/master

Fixed minor errors.
Merge pull request #147 from stackcoder/pull-request-loading-animation

Hide loading animation after media has been loaded
Merge pull request #136 from gergo85/patch-5

Add pointer property
Improved UI

- Added close button outside the bottom bar
- Added option to show/hide the close button on mobile devices
- Always close on swipe (option removed)
- Bars always hidden on mobile devices (option removed)
- Changed layout a bit
Merge branch 'dev'