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

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Release 1.0.0

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Release 0.3.0

See change log for changes.

Release 0.2.2

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Removed php-ext as dependency

0.2.1

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

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