Minor bugfixes

[FEATURE] Add shortcut for TYPO3 live search #594
[FEATURE] Check storage page for event in detail/registration view #574
[BUGFIX] Events get not selected using speaker in eventDemand #589
[BUGFIX] Error message when translating location record in TYPO3 7.6 #587
[BUGFIX] Localization tab label missing in TYPO3 7.6 #586
[BUGFIX] Copying records fail with mysql strict mode #588
[BUGFIX] Ensure empty checkbox registration field value is an array #591
[TASK] Prevent copy of waitlist registrations #590
[DOC] Add FAQ section about file translation #593