Fixed #20805 -- Removed an extra colon beside checkboxes in the admin.

Thanks CollinAnderson for the report.
Fixed #18511 -- Cleaned up admin password reset template titles.
Fixed #18404 -- Added test for AppStaticStorage with non ascii path

(bug was already fixed in #19357)
Fixed a number of minor misspellings.
Fixed #11195 -- Added CSS classes to the changelist cells to allow style customizations. Thanks to akaihola, Ramiro Morales and vdboor for their work on the patch.
Moved a release note that I had accidentally misplaced in bb145e2c47d71.
Simplified smart_urlquote and added some basic tests.