Enabling cross-publishing for 2.11

Twitter has released collection utils for Scala 2.11 with the version 6.20.0
add timezone to iplocation structure

This should resolve issue 10.
fix a typo in readme
Stubbed CHANGELOG for 0.2.0
Bumped version to 0.2.0
Merge branch 'pooya-master' into feature/0.2.0
Added MaxMind timezone lookup (closes #24)
Added assertion testing MaxMind timezone lookup
Merge branch 'listatree-master' into feature/0.2.0
Enabled cross-publishing for 2.11 (closes #23)
Finalized CHANGELOG and README for 0.2.0
Updated test suite to work with Scala version 2.11 (fixes #26)
Updated Scala compatibility information in README
Merge pull request #25 from snowplow/feature/0.2.0

Feature/0.2.0