Fixes #8067. Feature: url-sip / url-sip-skip-history - Form forwarding can now be used with SIP encoded parameter.

Fixes #7925. a) change CWD during split reduced to splitting only. b) fixed problem in mkDirParent() with absolute paths, c) make logger independent of CWD, d) fixed problem with `mktemp --tmpdir`(difference Ubuntu 16 / 18) by using PHP function, e) fixed some 'undefined index' problems

Fixed styling errors with too less indention. Maybe copying text between phpStrom and Sublime changed the indention.