Fix save after last commit

[zuphilip]

• the updateDate parameter in save is not anymore needed
• tooltip for save and save to Zotero was switched

[dstillman]

You just mean it wasn't updating the date, right? It was still saving.

[zuphilip]

No, it was not saving for me, because updateDate variable was not defined in the save function.

[dstillman]

Ah, yeah, that probably broke when I was resolving a merge conflict, and I didn't catch it afterward — sorry!