bumped ver to have .99
now using rstudio project
updated all man files for new roxygen2 version,
tidied sofa_alldocs, should work now, #13
now importing jsonlite, #14
reworked sofa_alldocs
replaced plyr compact with internal version of fxn
using GET helper fxn in sofa_ping now
fixed up sofa_head
fixed up sofa_getdoc
fixed up sofa_listdbs