Move ethnicGroup to 01-function.r, add ageGroups to simplify age aggregation, fix victims columns and apply aggregations
Move ethnicGroup to 01-function.r and create ageGroups
apply ethnic and age grouping to victims
new Template directory
Correct and clarify crashes.txt state highway column
New data and output/crashMeshblocks.txt
Read data with column headings

The position of columns varies uncontrollably from CAS.  They will now be sorted alphabetically before being renamed.
Rename column headings in alphabetical order