Corner case fix for upload element.  We can't use the cache'ed path,
built during validation, in uploading if it contains regular element
placeholders, as other element data may have changed since validation of
this element, like in a onBeforeProcess form plugin, or a 'replace'
validation.
Fix to previous fix for upload file paths
fixed: birthday element in list filter showing duplicate years
Merge branch 'master' of github.com:Fabrik/fabrik
Fix to upload element so it creates index files in any folders it
creates.  Was only creating in leaf folder, not in any intermediate
branch folders.
Merge branch 'master' of ssh://github.com/Fabrik/fabrik
Fix to previous fix for upload element creating index files.  Apparently
you can't make abstract functions static, or at least it pitches a
'strict' warning.
changed csv export to show filename and not filepath
Merge branch 'master' of github.com:Fabrik/fabrik
fixed: list row plugin buttons, incorrectly had class="hidden" applied when action method floating
updated listcsv list plugin import user code