Fixes #311 #106. Copied parakeety/coffeelint-prefer-english-operator
with @parakeety's permission
Move the CoffeeScript.tokens mock into its own batch to isolate it from other tests
Rename prefer_english_operator test to match the naming convention and prevent it from running first (see previous commit)
Switch prefer_english_operator to use the Lexical Linter
Merge pull request #316 from clutchski/prefer_english_operator

Fixes #311 #106. Copied parakeety/coffeelint-prefer-english-operator