Test hosted parse

[rhymes]

Switched tests running against parse.com to a hosted ParseServer on heroku
Added dotenv so we can personalise the configuration locally
Encrypted credentials
Fixed the tests

[coveralls]

Coverage decreased (-0.5%) to 97.624% when pulling 0a59adb on test-hosted-parse into a6cd145 on master.

[coveralls]

Coverage decreased (-0.5%) to 97.624% when pulling 0a59adb on test-hosted-parse into a6cd145 on master.

[coveralls]

Coverage decreased (-0.5%) to 97.624% when pulling eab84f1 on test-hosted-parse into a6cd145 on master.

[coveralls]

Coverage decreased (-0.5%) to 97.624% when pulling eab84f1 on test-hosted-parse into a6cd145 on master.

[coveralls]

Coverage decreased (-0.5%) to 97.624% when pulling 6506511 on test-hosted-parse into a6cd145 on master.

[coveralls]

Coverage decreased (-0.4%) to 97.627% when pulling a849dd9 on test-hosted-parse into a6cd145 on master.