v2.1.0 - Use caching in Services

Using cache for services (#100)

v2.0.1 - Formatting & Date utils

• Run PHPUnit's optimize imports over the whole codebase so now all use statements are alphabetical
• Add Broadcast->isOnAirAt and Service->isActiveAt methods to help define timings of Broadcasts and Services

v2.0.0 - The cusp of caching

We've changed the constructor arguments of services - this is a breaking change.

There are plenty of other internal new features - too many to list here.

Also from now on we'll get a stricter about making releases when we add new functionality.

v1 - "Initial" Release

Hurrah, we're ready for primetime!