Release 1.3.0

Use ttl of 0 when passed null

Full Changelog: 1.2.0...1.3.0

Release 1.2.0

See change log for changes.

Release 1.1.0

See change log for changes.

Release 1.0.0

See change log for changes.

Release 0.3.0

See change log for changes.

Release 0.2.2

See change log for changes.

Removed php-ext as dependency

Removed all extension dependencies, and instead added them as suggest…

…ions.

Removed tagging support and updated to common 0.3

0.2.0

Tagging bugfix and updated tests to ^0.9

First release

Merge pull request #1 from Nyholm/travis

Fix for APC on travis