MapServer fixes to allow Mapfiles in /home/user

[geographika]

This pull request includes the following changes:

• allows Mapfiles to be loaded from any location. As discussed in MapServer QuickStart Updates OSGeoLive-doc#869 - the quickstart asks uses to save files in the /home/user directory. The current MS_MAP_PATTERN only allowed for Mapfiles in /usr/local.
• Grants execute permissions on the /home/user directory (execute in this case means the user can read the contents, not execute scripts). Without this MapServer can't read the file and returns msLoadMap(): Unable to access file. (/home/user/mapserver_quickstart.map).
• Switches the docs download to HTTPS

[geographika]

This update does not appear to fix the permissions in the latest osgeolive-17.0alpha3-amd64.iso which still returns msLoadMap(): Unable to access file. (/home/user/mapserver_quickstart.map)

OSGeoLive/bin/install_mapserver.sh

Lines 149 to 150 in f714b3c

	# allow Mapfiles to be read from /home/user
	chmod o+rx "$USER_HOME"

However, when logged into the VM and manually running:

sudo chmod o+rx /home/user

I can access http://localhost/cgi-bin/mapserv?map=/home/user/mapserver_quickstart.map&SERVICE=WMS&REQUEST=Getmap&VERSION=1.1.1&LAYERS=Countries&STYLES=&SRS=EPSG:4326&BBOX=-137,29,-53,88&FORMAT=PNG&WIDTH=800&HEIGHT=600 without problems.

Logged permissions:

# prior to manually running command
ls -l /home
drwxr-x--- 19 user user user/

# manually run permissions
sudo chmod o+rx /home/user
drwxr-xr-- 19 user user user/