added function to fill missing values in yearly data
added missing value fill for all year variables
added some missing variables and ensured that we do not pull school type data for a school attended after college graduation
added output to python code that yields applied list by IPEDS number for each school; added roster number identification to R code (in testing)
madesome changes to R to get roster information for each college. also created output file in python
pulling financial aid data that is unique to each individual and school combination
extracted lookup information successfully for all relevant schools
working on pulling information on financial aid out of actual data poins. Missing the YCOC-022 variable for loops >1