ibid and repeat citation support in footnotes

[dstillman]

As noted at ​http://forums.zotero.org/discussion/331/, repeat citations (cited before, but not the same as the previous citation) need to be supported as well, not just ibid (same as previous):

Only the first time a source is cited is the full citation used; each subsequent citation uses as little information as possible, usually last name and page number, or full name if more than one author with the same last name, or name and title if author wrote more than one source.

[dstillman]

(Forum post in previous comment refers to Chicago — I don't know about other styles.)

[simon]

(oops, should have been a comment)

The Chicago Manual of Style says:

"The most common short form consists of the last name of the author and the main title of the work cited, usually shortened if more than four words."

Right now, we can't actually shorten the title, but the forum poster is incorrect in asserting that the short form should not contain the title unless there are multiple books by the same author.

As noted at ​http://forums.zotero.org/discussion/331/, repeat citations (cited before, but not the same as the previous citation) need to be supported as well, not just ibid (same as previous):

Only the first time a source is cited is the full citation used; each subsequent citation uses as little information as possible, usually last name and page number, or full name if more than one author with the same last name, or name and title if author wrote more than one source.

[simon]

(In [1263]) addresses #463, ibid and repeat citation support in footnotes. still need to deal with page numbers on ibid; does this need to be handled in the CSL, or is it the same for all styles?.

[simon]

(In [1291]) closes #463, ibid and repeat citation support in footnotes
attempts, but fails, to suppress an inconsequential error related to communication with Word on the Mac (perhaps on the PC, too?). i encased it in a try block, but it still throws an exception. strange.