* Check DB structure version, config file version and MPOS core version
* Added new Admin Dashboard to show this core information
* Cronjobs will be disabled if SQL files are not imported
* SQL files must re-set the db_upgrade_required setting
* Cronjobs will disabled if config files are not updated
* Simple config file update and version string update will fix this
* Added MPOS status overview
* Cronjobs and Wallet information for now, others may be added later
* Added new navigation link for Admin Panel Dashboard
* Added new version file
* Will require updates whenever DB or configs are updated
* Update SQL file that adds the DB_VERSION setting
This will address #1242 and already includes a huge chunk of changes
required to make this work.
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