DRY tests, move common functionality to utils
Fix the ‘fs: missing callback Error’ error
Do not load file if ‘cache’ is set to ‘false’
Update Stylus to the latest version (0.49.3)
Update Chai to the latest version (1.10.0)
Update Sinon to the latest version (1.12.1)
Update Request to the latest version (2.48.0)
Make the if condition more clear
Remove unused dependencies
Show warning if it was not possible to remove the cache index file
Print out path to the cache index file
Merge pull request #15 from apiaryio/baggz/set-options-cache

Do not load file if ‘cache’ is set to ‘false’