Issue #19: Add scripts to insert travel allowance data

scripts/travel_allowances/README

scripts/travel_allowances/create_travel_allowance_config.py

scripts/travel_allowances/get_last_day.sh

scripts/travel_allowances/insert_travel_allowances.sh

scripts/travel_allowances/logstash_config.example

scripts/travel_allowances/process_travel_allowances.sh

scripts/travel_allowances/resume_travel_allowance.sh

scripts/travel_allowances/unzip.sh

scripts/travel_allowances/unzipCaller.sh