Tyson added ID code that can merge with landcover and pesticide files
Added RTENO unique ID to match fifty7.csv bird population data
Added code to change ID's for different datasets so they can be merged
Added RTENO unique ID so can be merged with landcover and fifty7_withRTENO.csv population data
Merge branch 'master' of https://github.com/slomascolo/NCEAS-RENCI_2014