misc files
continued to work on section 3 of the vignette && deleted to files that aren't necessary (git ignore and R ignore files)
most up to date .pdf of the vignette
eliminated uncessary figures
eliminated figure
Continuing to work on section 3 of the vignette
Continued to work on section 3, adding additions.
Merge pull request #3 from USGS-R/master

Merge pull request #6 from schristel-USGS/master
Merge pull request #7 from schristel-USGS/master

pull request 15:45 June 25