Test suite uses inconsistent terminology for suite/spec

[greghaskins]

Let's standardize on what Jasmine does: describe declares a "suite" and it declares a "spec".

This will make it less confusing for future users and contributors, and is especially important for ExampleSpec since that is what people see first when they find Spectrum on GitHub.

To do:

• Read/seach through Spectrum's tests to find usages and mis-usages of "suite", "spec", and "test"
• Update test code to reflect proper terms