v243patch1 adds these features to v243:
- removes support for PHP v5.5 (prepping way to eventually remove 5.6 & 7.0 also)
- adds optional support for elFinder ZohoOffice editor if api key is defined
- adds optional support for elFinder using MS Office online preview over Google Docs
- add generic facebook and twitter meta info to all pages, use theme logo if it exists
- add Kint v3 eDebug support (must be in folder /kint3)

v243patch1 fixes these issues in v243:
- language phrase libraries not updated prior to v243 release
- fix form wizard subheaders shown on small devices
- regression fix bs3/bs4 view orders unable to load select2-bootstrap.css file
- regression fix jstree fails to load if minify linked js turned on
- regression fix elFinder not setting file owner on file upload
- fix elFinder sets file owner to current (non-admin?) user if new file was found on server
- fix elFinder only file owner or admin may change file's shared, title or alt entries
- regression fix bootstrap 4 toggles widget
- regression fix bs4 slingbar picking up theme styles
- regression fix bs4 listbuilder control broke dialogs (form module configuration)
- regression fix bs4 hardcoded chrome style sometimes missing

v243patch1 updates these 3rd party libraries in v243:
- TinyMCE to v4.8.2
- ReCaptcha lib to v1.2.1
- popper.js to v 1.14.4
- elFinder to v2.1.42
- SimplePie to v1.5.2
- Font-Awesome to v5.3.1
