element_upload: show upload progress and droplist always
element_upload: make the invisible button width same as the visible button
Ensure pickling works even with signkey that isn't 16 bytes
Merge pull request #70 from tex/gmail_download_button_fix

Gmail download button fix
Don't flatten before sending. Not necessary
Merge branch 'master' of github.com:nitrogen/nitrogen_core
Merge branch 'master' of github.com:nitrogen/nitrogen_core
Add doc "how to add plugins to an older version"
Merge branch 'master' of github.com:choptastic/nitrogen_core
Merge branch 'master' of github.com:nitrogen/nitrogen_core