0.7.7

• (Example) Added new interval callback example
• (Bug Fix) Merge pull request #160 from rustygreen/patch-1
• (Bug Fix) Fixed constructor bug passing "factory". Updated face.js, the "factory" was not being passed into the constructor, instead a typo was "factor".
• (Bug Fix) Merge pull request #150 from charlesbaynham/Fix-modulus-for-getWeeks
• (Bug Fix) Fixed typo in the definition of getWeeks, preventing its usage
• (Bug Fix) Merge pull request #156 from laureanoendeiza/patch-1
• (Bug Fix) Fixed typo in the definition of getWeeks, preventing its usage.
• (Bug Fix) Fixed a typo in the definition of the (unused by default) method getWeeks.