OPAL-1588 - add more functionality and implemented data loading
OPAL-1588 - added character set to datasource and parsing exception
OPAL-1588 - changes referenced spssreader package version

Signed-off-by: Ramin Haeri Azad <rhaeri@p3g.org>
Merge pull request #9 from kazoompa/feature-OPAL-1588

Feature opal 1588