Feature #6314 - HTML Mode & sendMailSubjectHtmlEntity for Forms. Also fixed some issues with Documentation and implementation.

#5133 / sendmail: subject and body html entity decode: Introduce options for 'subject' and 'body' to switch on/off HTML encoding / decoding

SendMail.php: in error message show commandline.
test.html: remove

Download.php, Html2Pdf.php, Link.php, SendMail.php: Add TOKEN_PAGE as a valid source for download. This should be the same as TOKEN_URL_PARAM.

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

 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

config.qfq.ini: REDIRECT_ALL_MAIL_TO = john@doe.com
All emails, sent bey QFQ will not be sent to the given receiver, instead they are delivered to 'catch all email' address.
Sendmail.php: Check config.qfq.ini setting for REDIRECT_ALL_MAIL_TO - if set take that address as real receiver for all mails from Form and Report.

For updates of QFQ prior to 0.17.0, do:   ALTER TABLE  `Form` COMMENT =  'Version=<your old QFQ version>'
DatabaseUpdate.php, DatabaseUpdateData.php: new class.
QuickFormQuery.php: Add DB UpdateCheck
Database.php: moved to new subdirectory `database`. Add 'ALTER' as a new SQL command.
FormAction.php, TypeAhead.php, Report.php, Sendmail.php, FillStoreForm.php, Store.php, AbstractBuild.php, Delete.php, Evaluate.php: Update path to Database.php.

FormAction.php, Report.php, Sendmail.php, Index.rst:  By default all QFQ send mails contains now 'auto-submit'.

QuickFormQuery.php, FormAction.php: implemented FormElement 'sendmail'
Report.php: Update column 'sendmail'
Sendmail.php: Update class to send mailand to log them in table mailLog.
AbstractBuildForm.php: refacxtured columnname 'value' to be used via constatn FE_VALUE.
formEditor.sql: renamed FE.typ 'sendmail' to camel hook 'sendMail'. Changed FormeElement.mode from 'select' to 'radio'. Added empty table 'mailLog'.