Sija/garb — pull request #32 by bensaunders (2013-10-14 12:48:33+00:00)
Title: Allow alphanumeric segment ids

GA has introduced new alphanumeric ids for Advanced Segments (See changelog entry 'Release 2013-07-15 (July 16, 2013)' [here][1]), so Garb can't call `to_i` on them any more without causing problems.

[1]: https://developers.google.com/analytics/devguides/reporting/core/v3/changelog)