Move frespo_utils.sendhtml_mail to core.services.mail_services
Move frespo_utils.validateURL and frespo_utils.validateIssueURL to core.services.issue_services
Move frespo_utils.socialImages to core.models and related changes
Move frespo_utils.CURRENCY_SYMBOLS to core.models
Move frespo_utils.Struct to core_splinter_tests.tests.helpers.appdriver
Merge pull request #158 from iurisilvio/frespo_utils_refactor

Frespo utils refactor