Sort arrays before displaying them

This makes Krumo default to sorting arrays by key. There is a
config option to disable this.
Bump version to 0.4.2
Fix array sorting

Only sort associative arrays
Indicate in the HTML which arrays have been sorted
Add a tooltip to the "sorted" message
Only sort array with more than 1 item
Don't sort arrays that are already in sorted order
Merge branch 'master' of https://github.com/oodle/krumo
Bump the version to 0.4.3
Merge pull request #7 from scottchiefbaker/master

Add a new feature to sort associative arrays