INSTALL.md - don't change the administrator, this database will not be used

See the https://github.com/georchestra/LDAP/blob/master/README.md instructions
for importing the new database.
it was improved the ogr installation checking
Try to find a text/html metadataURL entry after GN ticket #1227.

Better than taking the first returned entry.
Merge pull request #222 from landryb/fix-metadataURL-selection

mapfishapp: try to find a text/html metadataURL
Merge remote-tracking branch 'origin/master' into ldapadmin-public
ldapadmin - add ldapadmin module in pom
Merge pull request #220 from mpazos/mapfishapp-checking-ogr

mapfishapp-fails loading files, when gdal is not instlled
Merge remote-tracking branch 'origin/master' into ldapadmin-public
fix two typos
Merge remote-tracking branch 'origin/ldapadmin-public' into ldapadmin-public
Merge branch 'ldapadmin-public-issue215' into ldapadmin-public