added units example to docs
Merge pull request #455 from Skud/doctweak

added units example to docs
+ Example on how to bypass cache
Typo
Merge pull request #457 from pascalbetz/master

Add an example: CacheBypass
updated readme: quota for freegeoip
Merge pull request #458 from buren/master

Updated README: FreeGeoIP quota
Fix for https://github.com/alexreisner/geocoder/issues/442#issuecomment-17581959
Merge pull request #461 from weibel/master

Fix for AutoexpireCacheDalli urls
Allow for setting a custom distance and bearing column.
Add tests for custom distance and bearing columns.
Set default value for distance_column and bearing_column to 'default' and 'bearing'.
Update README to reflect bounding box optimization
Merge pull request #468 from aripollak/patch-1

Update README to reflect bounding box optimization
Merge pull request #465 from seanski/master

Allow custom naming of distance and bearing columns.
Avoid error when hash key missing.

Addresses issue #450. Wish we had sample response to see exactly what
data was returned, but we don't.
Update compatibility notice.

Add Rails 4 and Ruby 2.
Update link to freegeoip documentation, .md instead of .rst
Merge pull request #474 from nickhammond/patch-1

Update link to freegeoip documentation, .md instead of .rst
This commit adds the Data Science Toolkit as a lookup type.  The DSTK behaves identically to the Google Maps API with the exception that it can be run behind your own firewall.  More information about this tool can be found here: http://www.datasciencetoolkit.org/