Add ibid and Title Casing options to Word Plugin Document Preferences Window

[tjowens]

Allow users to chose if they want to use ibid and if they want to title-case all their bibliographic entries or footnotes with any of the existing title-casing functions from the word plugin's document preferences window.

If users chose to use ibid or title-casing allow the to override it on a case by case basis through the "show editor" option when working with individual citations.