Setting the default width for selects to 100%
Reducing the z-index of some elements, because they were on top of some components
Changing the image and file input order
Using the url of the current page in the index search form

If the user has a custom index route this way the form will post to the
right url and will not throw an error
Merge pull request #68 from cartolari/master

General adjustments on Carnival