update internal insert sql generating scripts
add POI library for parsing Excel sheet
finish excel data file parsing in the EventLoader
move CSV file parsing code to template processing class
update upload file name in the event loader to dataTemplate
handle multi-select options in generating Excel template
update command line tool to generate CSV template NOT TSV
minor code formatting
skips empty line in reading CSV files
update template parser to skip the second line only if it is descriptions (metadata)
remove legacy class that was used to upload event files and related configurations
remove unused class