v1.3 includes an important security fix for users of Go 1.2 (Debian <=7, Ubuntu <=14.10, etc.). This would cause token comparison to fail: https://groups.google.com/forum/#!topic/gojiberries/bJuFtlhjVqM
CHANGELOG:
- [bugfix] Token comparison could fail on versions of Go < 1.3.
- [ci] Updated Travis to use matrix builds.