removed crossref test
removed rcurl from desc file, #84
removed crossref code so global variable check doesnt fail
removed plyr::comapct
cleaned up plosviews, had old rcurl params, added in ... for curl options
replaced each call to full plos api url with one fxn call to get url
bumped date
replaced data.table with dplyr::rbind_all, #84
bumped patch ver