Remove headers and problematic first two rows
Notebook to add col names and new cols

Add names for all columns
Add column with four-digit year of entry
Add column with age at hearing
Add column with age at hearing binned by decade
Output as parole_data.csv
Add headers and transformed columns

New column for four digit year of entry
New column for age at hearing
New column for age at entry binned by decade
Merge pull request #18 from joehooper/master

Clean up csv data and add date and age columns