registration 7.x-1.0-alpha5

Hopefully a final alpha with loads of improvements and bug fixes before releasing a beta if nothing major comes up. Huge thanks to the community for all their contributions, especially @dpi, who's been very active with patches in the issue queue. Changes since 7.x-1.0-alpha4:

• Moving Views integration into separate submodule.
• 1488604 by dpi: Additional views fields.
• #1491154 by dpi: Add additional props to hook_field_extra_fields().
• #1484036: User form_state redirect rather than drupal_goto() when saving settings form.
• Moving forms include file into global module location as ajax image uploads on reg forms were causing errors. Fixes #1411782.
• #1497222: Add missing t() wrappers.
• #1498432: Set proper static variable in registration_event_count().
• #1493110 by mikestefff: Registration "close" date is only enforced if there is an "open" date.
• #1517756 by @dpi: Control access to registration_form based on permitted people types.
• Adding api docs.
• Removing custom registration_delete hook as it is handled by entity api.
• #1511172 by @dpi: Add hook_registration_entity_access.
• #1513436: Non admin user can't edit registration settings.
• #1514890: Add tag to cron select query.
• Setting anon_email property to NULL by default.
• Fix unique user key in registration table.
• Remove default empty string value for anon_mail.
• Rename new create other permissions.
• Add user col to default registrations list.
• Test if user with same email as anon_email is already registered in registration_is_registered(). Also removed an unused function.
• Fix label for who is registering field for anon users.
• Change wording and order of who's registering options.
• Set default value of who's registering field on reg forms.
• #1473008: Adding permissions for registering other registered and anon users and altering registration_is_registered() to work for both anon and registered users.
• #1473008: Adding user and user_uid properties and an abstract method/property for mail that is based on either the user or anon_mail.
• #1473008: Alter registration schema adding a user_uid column, chaning mail to anon_mail and making it optional, and adding an unique key for users.
• #1472250 by dpi: View and edit own registration permissions.
• #1491166 by mikestefff: Deleting a registration does not redirect, causing a 404
• Correct usage of drupal_alter() when checking status.
• Restore registration_get_properties().
• Ensure that multiple registrations variable is set.
• Add registration_status() check to field formatter.