Add preparation for provider (bug 942361)
Merge pull request #74 from muffinresearch/add-provider-handling

Add preparation for provider (bug 942361)
Add error codes (bug 1033433)
Merge pull request #81 from muffinresearch/add-error-codes

Add error codes (bug 1033433)
Commit from Mozilla Verbatim by user unghost@mozilla-russia.org.: 39 of 39 strings translated (0 fuzzy).
Use the checkURL func and remove magic
Add boku site to settings
Add missing error code and provide default if code is missing
Merge pull request #75 from muffinresearch/use-checkURL-func

Use the checkURL func and remove magic
Move wait-to-finish -> complete-payment
Call paymentSuccess for non-boku providers
Add payment failure