v1.2 Deprecate CREST and fix tests

[lockefox]

• Fixes serious test errors: https://travis-ci.org/EVEprosper/ProsperAPI/builds/389093207
• Upgrades requirements from static to latest where possible
  • pystan has been locked at 2.15.0 due to API incompatibilities in fbprophet
  • fbprophet has been upgraded to 0.3.post1 from 0.1.post1
  • Adds back mac compatibility!
• Fully deprecates CREST functionality (sunset by CCP)
• Improves logging patterns
  • Fixes multiple-handles problem in endpoint tests
  • Reduces dependency on a global logging variable
• Adds a fast test command that skips prophet tests
• Adds .coveragerc to stop counting weird global spaces

[coveralls]

Coverage increased (+30.6%) to 94.539% when pulling 1aed383 on v1.2_withsplit into a999a33 on master.