Added 2 new functions.
Added site and general wqp data function.
Took pdf out of inst/doc. I don't think it's needed there anymore.
Latest build.
latest build
test

Merge branch 'master' of github.com:USGS-R/dataRetrieval

Conflicts:
	vignettes/dataRetrieval.log
	vignettes/dataRetrieval.synctex.gz
	vignettes/dataRetrieval.tex
	vignettes/figure/egretEx.pdf
	vignettes/figure/getNWIStemperaturePlot.pdf
	vignettes/figure/getQWtemperaturePlot.pdf