Merge pull request #1 from WestleyArgentum/master

load api keys from a file
changes to roll_call_builder
merges fixed
roll call dataframe works! problem to be fixed: some legislators aren't being returned by the search, if they changed jobs in the last election
Merge pull request #2 from WestleyArgentum/master

start breaking things into functions
dataframe builds with all-int values now
merge conflict resolved
df 0.5 initialization fixed
all_bill_vote function