initial working version with bugs.
the original constant style causes warning of duplicated def.

will handle this later.
family-name -> pinyin updating and dumping
use an interactive function for a restart
overwrite existing vcf output file
use relative path to the mapping file from faminly-name to pinyin
create the output vcf file that does not exist.
update the mapping file
refactor name
use verbose name for errors and add print methods for them
let the user decide the fields in the CSV file
export the driver function
a simple manual
a simple manual
Merge branch 'integration' of https://github.com/md11235/csv2vcf into integration

Conflicts:
	README.md
Update README.md
add more doc
Update README.md
remove the return value of dumped mapping records
abort on a unsupported field.