modified localdir, changed pdf output and called someplots on centroids instead of centroiddata.
Merge branch 'master' of https://github.com/kaycole/fish_shift
Kaycee's code to plot summer flounder distribution over time based on NOAA trawl data.
Merge branch 'master' of https://github.com/kaycole/fish_shift
added NOAA summer flounder data.