Metadata correction proposals

* *The Apologies of Justin Martyr, to which is Appended the Epistle to Diognetus* needs Greek added to Language

* *The Collected Writings Of W.E. Vine* commentary section, should be type:commentary

* *The Cross and Salvation* and *No One Like Him* (Crossway's "Foundations of Evangelical Theology" series) missing series

* *Early Travels in Palestine* - This is essentially a collection of medieval travel accounts. The included works should be named in the info panel, and the original authors should be named in the Author column.

* *An Elementary Latin Dictionary* - type should be Lexicon, not Dictionary