fix wrong message: "ZotFile: Attachments got from tablet" when atts deleted
Cf. https://github.com/jlegewie/zotfile/issues/67#issuecomment-12711103
Two new hidden prefs:
-allow user to display locale date/time in the notes containing the extracted annotations;
-allow user to change the quotation marks in these notes (cf. http://forums.zotero.org/discussion/27456).
attachment removed from tablet message
hidden prefs:
-locale date in extracted notes is the default;
-cleaning the code for quotation marks in these notes.
Merge pull request #68 from gracile-fr/master

 fix wrong message: "ZotFile: Attachments got from tablet" when atts deleted
Merge pull request #69 from gracile-fr/pdfExtraction.HighlightQuotationMarks

Two new hidden prefs
fix auto rename when removing files from tablet in forground mode
update readme
update version
change url of changelog
fix url for poppler extractor
deutsche übersetzung von zotfile.properties
corrections for German translation
high FF version
fix wrong message in `getAttachmentFromTablet`
fix in german translation
add documentation
format readme
Finished translating pop-up messages