change minimum Leiningen version to 2.1.0 for Clojars deployment
update README to point the API link to GitHub repo
first code for IPv6 handling, missing init check
add IPv6 databases + fix test
fix location of IPv6 City db + cd for correct dir
update DBs, inc IPv6

update databases to latest version, including IPv6
improve IPv6 code -- not working yet

code compiles but has runtime errors. selection of ip-version is not
working correctly for some reason
merge @bertschneider fixes for IPv6
update README for new IPv6 support

describe how to handle IPv6 functionality
add IPv6 usage example in repl
Merge pull request #6 from sventech/master

Great! Thx for your work.

I will try to update the clojars dependency in the next days.