First function to download single tabular data set
updated .gitignore
Merge branch 'master' into naupaka

Conflicts:
	.gitignore
	pangaear.Rproj
updated .gitignore
various fixes; don't use return(); selective imports; Rd formatting using macros
Merge pull request #16 from gavinsimpson/master

rename to get correct extension
Merge pull request #15 from ropensci/naupaka

added first function for downloading and parsing tab-delim text data
Merge pull request #17 from gavinsimpson/pg-identify-gls

Various edits
patch up download-function