fusionpbx/fusionpbx-install.sh: FusionPBX installer script

zrkadlo https://github.com/fusionpbx/fusionpbx-install.sh.git

FusionPBX 00b3c3b5d9 Use branch 5.3 for the new release.		10 mesiacov pred
..
resources	00b3c3b5d9 Use branch 5.3 for the new release.	10 mesiacov pred
install.sh	161cb556f0 Move IGNORE_DEPENDS	11 mesiacov pred
pre-install.sh	ba467b410a Make the scripts executable	8 rokov pred