modified scope and added history log file
Fixed Token Callback URL and made it generic
Changes in GoCoin Configration Setting in admin, User Authontication while invoice creation, Signature and hash creation validation, payment  validation and event log.
version compatibility check
Message Change in Order Comment now showing crypto currency and ammount used in addtion to general comments.
Modified readme.md text as per new options
Fixed naming issues in code
Merge pull request #7 from GoCoin/develop

Develop