sendMail refactored - AutoCron.php,Report.php,SendMail.php: SENDMAIL_IDX_* replaced by SENDMAIL_TOKEN_*

SendMail.php: renamed file and class from 'sendmail' to 'sendMail'. Remove obsolete function buildHeader().
AutoCron.php: Update use of class sendMail().
FormAction.php: rename function sendmail(0 to doSendMail().
Report.php: remove unnecessary code. Move sendmailConvertToken() to class sendMail / parseStringToArray().

Sendmail.php: log attachments in MailLog too.

Sendmail.php: Remove the optin '-q'  (quiet) from 'sendEmail' to see problems with broken parameter. Fix problem with missing '-a' for first attachment. Escape all Shell arguments before calling 'sendEmail'. Recode attachmentsBuild().

Manual.rst: sendMailToken 'f' changed from  'f' to 'F'.
Download.php, Linnk.php: TOKEN_FILE_DEPRECATED
Sendmail.php: broken, in the middle of work

BuildFormBootstrap.php: make buildPillNavigation dynamicUpdate aware.
QuickFormQuery.php: Fix problem with missing HTML_ID in FE.

Bug #5031 / Missing details in DbException: New definition of SYSTEM_SHOW_DEBUG_INFO: even after config.qfq.ini is parsed and SIP Infos has been read - if there is no BE User logged in, the value stays on 'auto' (earlier it has been replaced to 'no'). Staying on 'auto' keeps the information that replacing is still open and not replaced means 'no'-BE User logged in.

Bug 5004 FormElement with state 'ReadOnly' will be saved with empty value - existing values will be overwritten.

Bug #4771: workaround which switches off updates to SELECT lists, if they are part of a Multi-FE-Row.

Manual.rst: describe new option altsql, shead, stail
Report.php: implement altsql, shead, stail.

Report.php: 'line.count' general available per row. 'line.insertId'. RBGD moved inside of processing result. Replace variables in RBEG.
Variables.php: RegExp changed from 'all variables in double curly braces' to 'line.varname' - the other variables are replaced in eval.
Evaluate.php: Fixed problem that 'Dropdown Select' with '{{! SE...' not recognized.

 Manual.rst: description of new options for MAIL_LOG and Report/sendmail.
 sendEmail: added new perl script.
 Report.php: $mailarr renamed to $mailConfig. convertToken() updated.
 Sendmail.php: commented mb_send_mail(). New sendEmail().
 Config.php: new options MAIL_LOG.
 Store.php: Update SUSTEM_SEND_E_MAIL

phpUnitTests: fixed some ldap escaping defaulst for leading and trailing spaces. In webwork16, ' hello world ' is fine. On 'alfred16' it seems tob '\20hello world\20' is necessary. Now installed the php-intl. Let's see if something changed.

phpUnitTests: fixed some defintions of string/int