Refactor and update how dbreader is implemented and allow for using sqlite

[jepegit]

Probable adjustments needed:

1. change how dbreader is set in batch
2. change how journal reads db to allow for reading
3. update prms (and simplify the db-part, it looks ugly now)
4. make sqlite db for testing
5. update how filefinder works

[jepegit]

Added sql reader and methodology for exporting from the excel based db to sql. Since this will not change much how the API will be, I moved it from v1.0.0 milestone to v1.1.0