Changed "Scholar" to "Zotero", everywhere
Apologies to anyone with working copy changes, but there are probably the fewer at this moment than there will be again.
Hopefully this won't break anything, though existing prefs will be lost. I avoided scholar.google.com--if you know any other legitimate "scholar"s in the code, be sure to fix them once I'm done here.
This is a multi-commit change--there's at least one more coming. *Do not update to this version! It won't work!*
import/export of file data should work for all file types _except_ snapshots (in this situation, export is working, but import is not yet complete; see #193)
also, fixes a potential security issue that could have allowed malicious web translators to post local data to remote sites (although, given we maintain the central repository and there's no easy way to install a translator, the risk would have been minimal to begin with).
