Switched CSV file display to after form.
Formatting changes only.
Cleaned up HTML: Added missing closing div tag and removed stray closing p tag.
Eliminated obsolete private controller methods.
Fixed branching condition in get_upload_cultivars: For now, we raise
an exception if the cultivar is specified globally and there *is* more
than one species specified (the condition was backwards).
Typo: '=' in last commit should have been '=='.
Fix cultivar autocompletion for the case where the species value was
prepopulated at the time the page was loaded.
Added "start-over" links.