added hideFirstAndLast option
use itemsCssClass if it is defined
added ability to wrap carousel image inside link
don't render an empty element if user has no flashes
Merge pull request #56 from Jalle19/pager-first-last

added hideFirstAndLast option
Merge pull request #55 from Jalle19/obey-itemscssclass

use itemsCssClass if it is defined
Merge pull request #57 from Jalle19/carousel-item-url

added ability to wrap carousel image inside link
Merge pull request #58 from Jalle19/alert-no-empty-div

don't render an empty element if user has no flashes