allow calling the script from other directory than ./
add action „create-indexes“ with SQL File (from rfay)
move index generation to db_struct on table creation and add postalCodes Table with data
Merge pull request #10 from bussnet/master

Thanks for your contribution bussnet
- Allow calling the script from other directory than ./
- Add action "create-indexes" with SQL file (form rfay)
- Move Index Generation to db_struct on table creation and add postal Codes with Data