build: disable helpers installation

Signed-off-by: Andrzej Hajda <andrzej.hajda@wp.pl>
winexesvc: disable unused-value warnings

Signed-off-by: Andrzej Hajda <andrzej.hajda@wp.pl>
build: add -Wall compile flag and code cleanup

Signed-off-by: Andrzej Hajda <andrzej.hajda@wp.pl>
build: added man page to install

Signed-off-by: Andrzej Hajda <andrzej.hajda@wp.pl>
winexe: avoid double free

The patch adds zeroing pointers after free.
It should fix problem with service re-installation
due to version mismatch.

Signed-off-by: Andrzej Hajda <andrzej.hajda@wp.pl>
Revert "disable broken(?) NTMLv2 authentication"

This reverts commit a5f70abbbabac583019fd986ce05177a731fea94.

Signed-off-by: Andrzej Hajda <andrzej.hajda@wp.pl>