The "spaceless" tag

It is handy to use this tag when makeup contains list of an items where css property `display` was setted to `inline-block` and you don't want to write ugly code. For example: http://jsfiddle.net/kZzRp/
It is analog of the [spaceless](https://docs.djangoproject.com/en/dev/ref/templates/builtins/#spaceless) tag from Django.