* Move duplicate share UIAlertActions to AlertActions struct #359
Create helper AlertActions struct for convenient UIAlertAction's instantiation.
* Create AlertActionBuilder #359
The AlertActionBuilder is used to create custom UIAlertAction's with constituent parts.
* Create UIAlertController+Action #359
UIAlertController+Action extension provide a convinient way for adding actions into the UIAlertController.
* Move additional UIAlertAction duplicates into AlertAction #359
* NewIssueTableViewController: Use correct titles for alert actions #359
Use "Go back" and "Discard" titles instead of "No" and "Yes".
* IssueCommentSectionController: Refactor alert actions #359
* SettingsViewController: Refactor onSignOut alert actions #359
