Bump XML namespaces to 'stable-v1'

This action is performed on *all* active EWP repositories as part of:
#22

endpoints/get-response-example.xml

@@ -1,10 +1,10 @@
 <iias-get-response
-    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/get-response.xsd"
+    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/get-response.xsd"
     xmlns:c="https://github.com/erasmus-without-paper/ewp-specs-types-contact/tree/stable-v1"
     xmlns:xml="http://www.w3.org/XML/1998/namespace"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="
-        https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/get-response.xsd
+        https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/get-response.xsd
         get-response.xsd
     "
 >

endpoints/get-response.xsd

@@ -6,11 +6,9 @@
     xmlns:trm="https://github.com/erasmus-without-paper/ewp-specs-types-academic-term/tree/stable-v1"
     elementFormDefault="qualified"
 
-    targetNamespace="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/get-response.xsd"
-    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/get-response.xsd"
+    targetNamespace="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/get-response.xsd"
+    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/get-response.xsd"
 >
-    <!-- WRTODO: Replace all occurrences of 'master' (in all projects) with 'stable-v1' upon release. -->
-
     <xs:import
         schemaLocation="https://raw.githubusercontent.com/erasmus-without-paper/ewp-specs-architecture/stable-v1/common-types.xsd"
         namespace="https://github.com/erasmus-without-paper/ewp-specs-architecture/blob/stable-v1/common-types.xsd"

endpoints/index-response-example.xml

@@ -1,8 +1,8 @@
 <iias-index-response
-    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/index-response.xsd"
+    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/index-response.xsd"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="
-        https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/index-response.xsd
+        https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/index-response.xsd
         index-response.xsd
     "
 >

endpoints/index-response.xsd

@@ -3,11 +3,9 @@
     xmlns:ewp="https://github.com/erasmus-without-paper/ewp-specs-architecture/blob/stable-v1/common-types.xsd"
     elementFormDefault="qualified"
 
-    targetNamespace="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/index-response.xsd"
-    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/endpoints/index-response.xsd"
+    targetNamespace="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/index-response.xsd"
+    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/endpoints/index-response.xsd"
 >
-    <!-- WRTODO: Replace all occurrences of 'master' (in all projects) with 'stable-v1' upon release. -->
-
     <xs:import
         schemaLocation="../../ewp-specs-architecture/common-types.xsd"
         namespace="https://github.com/erasmus-without-paper/ewp-specs-architecture/blob/stable-v1/common-types.xsd"

manifest-entry.xsd

@@ -5,11 +5,9 @@
     xmlns:ewp="https://github.com/erasmus-without-paper/ewp-specs-architecture/blob/stable-v1/common-types.xsd"
     elementFormDefault="qualified"
 
-    targetNamespace="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/manifest-entry.xsd"
-    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/master/manifest-entry.xsd"
+    targetNamespace="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/manifest-entry.xsd"
+    xmlns="https://github.com/erasmus-without-paper/ewp-specs-api-iias/blob/stable-v1/manifest-entry.xsd"
 >
-    <!-- WRTODO: Replace all occurrences of 'master' (in all projects) with 'stable-v1' upon release. -->
-
     <xs:import
         schemaLocation="https://raw.githubusercontent.com/erasmus-without-paper/ewp-specs-architecture/stable-v1/common-types.xsd"
         namespace="https://github.com/erasmus-without-paper/ewp-specs-architecture/blob/stable-v1/common-types.xsd"