adopt template layout: vignettes in vignettes/, manuscripts in manuscripts
add a few version constraints
localize Makefile to vignettes folder
documentation updated
add install script for RWordXML
use travis-tool install_github to avoid 'no lib set' error
install more manual dependencies for RWordXML
work around install for Rcompression...
need wget to access https
try building vignettes on travis
no need to update latex envir
no building pdf manual on travis
declare suggests: RWordXML
trouble-shooting literature module
further literature methods
fix documentation errors
fixed some citation definitions and tests
Coercion to citation should be of type citation, not book, editedBook etc
Also re-defined the EML citation class as Citation (capital C), to avoid
conflict with the base R 'citation' class.

Since this change means the class name does not match the XML element name,
I added a mechanism to S4Toeml using a custom slot, xmlNodeName.  For emlToS4
this is already handled by specifying the class name explicitly in the function
call.  This may be useful for other classes as well
tweaks for working conversion between bibtex and EML citations
markdown version of knb vignette