fulltext v1.4.0

NEW FEATURES

• ft_get() gains a new publisher plugin: Cambridge. its not available in the from parameter, but if you pass in a Cambridge DOI, a plugin now exists to attempt to get the pdf (xml not provided) (#195)

MINOR IMPROVEMENTS

• Wiley now provides xml (in addition to pdf) for at least some articles. So ft_get() for Wiley now supports type="xml" in addition to type="pdf" (#209)
• reduce duplicated code in ft_get plugins for checking type parameter (#210)
• changed Wiley plugin for ft_get(): using different URLs for attempting to fetch articles, those with base url api.wiley.com instead of onlinelibrary.wiley.com (#191)

BUG FIXES

• ft_get() wasn't allowing type="pdf" for PLOS data source; now allowed in addition to xml; also plos requests for articles now using http instead of http (#205) thanks @clbti for the report
• fix to internal fxn fat_cat_search_one() used inside of ft_get(): fixed data.frame subsetting error due to sometimes missing columns (#206)
• fix to ft_links(): was erroring when publisher not supported yet; now gives back no data (#207)
• ft_browse() was failing when what="macrodocs" selected; macrodocs.org is now dead; what parameter now defunct (#208)
• fix ft_table() - was failing on reading malformed files (e.g., an xml file with pdf content inside) (#211)