Centralized where the bitpay.log file is set
Added some more logging for debugging issues
Pretty sure that doesn't need to be there
Merge remote-tracking branch 'upstream/master' into AddingHelper

* upstream/master:
  Marked other tests as incomplete
  Updated test to make sure it only takes valid currencies
  Updated so tests are in the root directory
  Minor tweaks
  Not using this either
  Not using this, removing
  A few minor updates and fixes
  Working on added tests to the project
Refactored and tests added
Merge pull request #66 from JoshuaEstes/AddingHelper

Adding helper and some code cleanups
Merge conflict resolved