Implemented download.php to offer SIP protected downloads for single files (any filetype) as well as concatenated PDF files and converted HTML pages.
download.php: API Interface
DownloadException.php: New exception class for downloads - might be extended for better error handling.
OnArray.php: new function getArrayItemKeyNameStartWith() to filter for specific elements in an array. New function arrayEscapeshellarg() to escape args
Download.php: Main class.
Link.php, Report.php: implemented new link type 'd' (=download)

Split PHP 'print.php' in a pure API file 'print.php' and a class 'Html2Pdf.php' - the class will be reused by Download.php

Manual.rst: Prefetch doc enhanced.
Ldap.php: replacement of '?' in LDAP search not processed with MODE_LDAP_PREFETCH - fixed. FE_TYPEAHEAD_LDAP_KEY_PRINTF renamed to FE_TYPEAHEAD_LDAP_ID_PRINTF
AbstractBuildForm.php: copy 'FE_TYPEAHEAD_LDAP_ID_PRINTF' to SIP seems never be done - fixed

#3552 / typeAheadLdapSearchPerToken - webpass kann nicht gleichzeitig nach Vornamen und Nachnamen suchen
After discussing with EV it's not necessary  to permut the serach, instead just repeat the whole search with every token. Quite simple and effective.

#3552 / typeAheadLdapSearchPerToken - webpass kann nicht gleichzeitig nach Vornamen und Nachnamen suchen
Neuen Modus 'typeAheadLdapSearchPerToken' implementiert.
Manual.rst: neues Feature dokumentiert.
Ldap.php: Neue Funktion 'explodePermutSearch()'.

During expanding of templateGroups, existing FE with no meaning for save (like note, subrecord, ...) has been created, filled with empty values and saved. Fixed for FEs with type 'subrecord' and 'note' - needs more investigation to check for further sideeffects.

Action elements, assigned to a container which are not a templategroup, threw an exception. In general, it makes no sense (at the time of writing this) to assign an action element to a pill or fieldset, but it should not throw an exception. Fixed - just ignore such assignment.

Throw of a UserFormException with wrong parameter. Fixed.

The new class T3info() was fine, but relying classes assumed that all array elements always exist. This was not given in the past. The new implemention creates at least an empty entry for each element.
AbstractException.php: removed garbage line.
save.php: require_once missing PHP Exception classes.
T3Info.php: recode.

Implemented.

#3536 / a) Datum (datetime / timestamp) werden nicht angezeigt, b) Angezeigte Datumsformat String und aktzeptierte Eingabe matchen nicht
Neu wird bei QFQ date/time/datetime kein HTML INPUT type=date|time|datetime-local mehr generiert, sondern ein 'text' - damit verlieren wir die Browserinternen Datepicker (Chrome, Opera) aber gewinnen die Kontrolle die Datumsformateingabe zurueck.

Unit Test angepasst und erweitert.
ext_emconf.php: minor version tag incremented

After 'sqlUpdate' a 'sqlDelete' have been always fired, even it was empty. After firing 'sqlDelete' the current 'slaveId' has been set to '0'. Thad 'id' has been written to the primary record. Now, 'sqlDelete' will be only fired if there is a sqlDelete is given and non empty.

Exception: rewrote getting T3 parameter without using Store(). Always report pages.uid, tt_content.uid.
 T3Info.php: new class
 Sip.php: penalty time for broken sip.
 Store.php: moved T3 code to T3Info.php

_paged renders the the current client parameter into a return URL. If the current client already contained a SIP, a check in Sip.php threw an exception, to prevent using the parameter 's' by the user.
 Sip.php: New: the exception is only thrown if the SIP is unknown.

formEditor.sql: added 'on update current timestamp'.

Play the following to existing tables:
ALTER TABLE `FormElement` ADD INDEX `feIdContainer` (`feIdContainer`);
ALTER TABLE `FormElement` ADD INDEX `ord` (`ord`);
ALTER TABLE `FormElement` ADD INDEX `feGroup` (`feGroup`);

Es war ein Vergleich mit Typ '===': geaendert auf typlos '=='.

#3502 / TemplateGroups: Checkboxen werden beim ersten Speichern (insert) nicht geschrieben - ein anschliessendes Update ist ok
Das Problem tritt nur auf bei MultiCheckboxen. Neu werden im Store  STORE_ADDITIONAL_FORM_ELEMENTS (ist bereits frueher, extra fuer Checkboxen, eingefuehrt worden) fuer alle TemplateGroup FEs (type=checkbox) die Fake Elemente angelegt. Dazu wird neu NAME_TG_COPIES in dem FEs gefuellt mit dem 'TG max copies'-Wert.