Added function and improved readme file.

I added the function compile_list, included a couple of data tables (for
offline work) and added examples to the readme file, including two
figures.
merged simons changes
moved images for readme to inst/img/ folder
removed merge conflict lines from man and dot r file for get_download, resolves #15
Merge remote-tracking branch 'upstream/master'

Conflicts:
	R/get_download.R