updated when to submit language and changed entry for Scientific Data
added PLOS journals
Added all PLOS journals

Tentatively set to go live on Wednesday, 11/5/2014
Merge pull request #765 from elizabethdryad/int-journal-table-language

Int Journals table - Updated when to submit language, added new PLOS journals, and changed entry for Scientific Data - NEEDS TO GO LIVE on PLOS integration day (Wed 11/5)
Merge pull request #772 from jamie-dryad/patch-40

Added all PLOS journals