- Remove extraneous parentheses around empty() calls
- Remove duplicate calls to intval(), count() or strlen() after empty()
- Replace ternary operators outputting binary value with empty() return value
- Rewrite defaults() without x()
* Rewrites:
- moved PAGE_* to Friendica\Model\Profile class
* Fixed more rewrites from plain (global namespace) PAGE_* to Friendica\Models\Profile class
* CR request:
- moved all PAGE_* constants to Friendica\Model\Contact class
- fixed all references of both classes
* CR request:
- moved ACCOUNT_TYPE_* constants from boot.php to Contact::ACCOUNT_TYPE_*
* Just copy-pasted this code from boot.php, needs to be changed to `const ACCOUNT_TYPE_FOO = x;`
* Ops, melting brain cells here ... :-/
* Use "LEFT JOIN" to always fetch the item. Needed for update routines.
* New conversion routine that now covers every item
* Post update is now activated
* We now use a hash based upon RIPEMD-320 for content and activity
* The hash doesn't contain the plink anymore
* Legacy item fields are now "null"able
* New hash function for a server unique item hash
* Introduction of the legacy mode (usage of old item fields)
* Code simplification
* We don't need the "uri" fields anymore in item-activity and item-content
* Use the "created" and not the "received" date for the hash
* Avoiding several notices
* Some more warnings removed
* Improved uri-hash / Likes on Diaspora are now getting a creation date
* Corrected the post update version
* Ensure an unique uri-hash
* Don't delete orhaned item data at the moment
* Partly reworked, due to strange behaviour
* Some more parts reworked
* Using the uri currently seems to be more reliable
* Using the uri here as well
* Use the hash values again
* Grouped item fields in different categories
* Notices again
* use the gravity (we always should)
* Added hint for disabled post updates
* Notices ...
* Issue #5337: Personal notes are displayed again
* Use the gravity again
