create authority_control images dir in the modules
replace thumbs down images with invisibles.
change psql queries to last_modified
dateAvailable field is not needed
debug statements to expose sql queries
forgot one
Don't need dateAvailable as vars
Need to parse the offsets too.
Add parsing for timezone codes without colons.
didn't mean to commit this
Merge pull request #796 from daisieh/dataone-listobjects

DataONE listobjects timestamp fixes
Merge pull request #793 from daisieh/thumbs-down-replace

Thumbs down replace