update GatewayGeo name

Author: jmckenna

en/installation/php.txt

@@ -28,7 +28,7 @@ not always in sync with other mapscripts.  As of MapServer 7.4.0, PHP/MapScript
 also available through the :ref:`SWIG API <swig>`.
 
 The original PHP module was developed by `DM Solutions Group`_ and `Mapgears`_ and is 
-currently maintained by `Gateway Geomatics <https://gatewaygeomatics.com/>`__ and
+currently maintained by `GatewayGeo <https://gatewaygeomatics.com/>`__ and
 other contributors.
 
 This document assumes that you are already familiar with certain aspects of 
@@ -113,7 +113,7 @@ Setting Up PHP on Your Server
 
 **Windows**
 
-- `MS4W (MapServer For Windows)`_ is a popular product maintained by Gateway Geomatics 
+- `MS4W (MapServer For Windows)`_ is a popular product maintained by GatewayGeo 
   that contains Apache, PHP, and PHP/MapScript ready to use in a zipfile or installer. 
   Several Open Source applications are also available for use in MS4W.
 

en/mapscript/php/index-5.6.txt

@@ -42,7 +42,7 @@ Windows Binaries
 ----------------
 
 PHP mapscript is included in `MS4W <https://ms4w.com/>`__, the popular
-installer maintained by Gateway Geomatics.  You can also
+installer maintained by GatewayGeo.  You can also
 see user-contributed PHP scripts, on the
 `MS4W wiki <https://ms4w.com/trac/>`__.
 

en/mapscript/php/php_intro.txt

@@ -49,7 +49,7 @@ Windows Binaries
 ----------------
 
 PHP 7+ mapscript is included in `MS4W <https://ms4w.com/>`__, the popular
-installer maintained by Gateway Geomatics.  You can also
+installer maintained by GatewayGeo.  You can also
 see user-contributed PHP 7 scripts through the SWIG API, on the
 `MS4W wiki <https://ms4w.com/trac/>`__.