Related: #i125226# don't try to access known-bad DDE servers

(cherry picked from commit 88de6a59d9d7933b86fdcba733277aa4fbd5e132)

Conflicts:
	sfx2/source/appl/impldde.cxx

Change-Id: If4dcd49cfe15188d06e4e06cd8e58cdcc66ed5a4
(cherry picked from commit b16f164650f8345e51bf0b0c73bf9c8eee775bc2)

Related: #i125226# some macro preferences are directly...

applicable to DDE servers

(cherry picked from commit 2c835e761e1e9ddb6794895e6f3538b918160dd1)

Conflicts:
	sfx2/source/appl/impldde.cxx

Change-Id: Ic16b3df34ac1b003a8a5cabab15ea655d05bdd18

Related: #i125226# typo fix

(cherry picked from commit 727ea069c6342e01a50c8b068ec302574b251cbd)

Conflicts:
	sfx2/source/appl/impldde.cxx

Change-Id: I8db53b7e8529d05e660a2d69e669b44c9045712c
(cherry picked from commit 13b68e24db26374ca17572de9abb429edeac32e9)

Related: #i125226# disallow absolute and relative paths for DDE servers

(cherry picked from commit 6b64ada6e3a902ac4b44fe49476514d49138d4d4)

Conflicts:
	sfx2/source/appl/impldde.cxx

Change-Id: I127add375a127dbbd0eaf12a10884e2636f1a332
(cherry picked from commit d1fc47793c1efbe9ff5271656283211647dd0b33)
Reviewed-on: https://gerrit.libreoffice.org/10203
Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Reviewed-by: Eike Rathke <erack@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>