Fixed broken links and redirects in documentation.

Removed reference to custom builds, feature removed in
https://github.com/openlayers/openlayers/commit/8e6b3bba994f5908e51c492ac314240863178789.

docs/ref/contrib/gis/forms-api.txt

@@ -155,10 +155,8 @@ Widget classes
     ``OpenLayersWidget`` and :class:`OSMWidget` use the ``openlayers.js`` file
     hosted on the ``cdnjs.cloudflare.com`` content-delivery network. You can
     subclass these widgets in order to specify your own version of the
-    ``OpenLayers.js`` file `tailored to your needs`_ in the ``js`` property of
-    the inner ``Media`` class (see :ref:`assets-as-a-static-definition`).
-
-    .. _tailored to your needs: https://openlayers.org/en/latest/doc/tutorials/custom-builds.html
+    ``OpenLayers.js`` file in the ``js`` property of the inner ``Media`` class
+    (see :ref:`assets-as-a-static-definition`).
 
 ``OSMWidget``
 

docs/ref/contrib/postgres/fields.txt

@@ -284,7 +284,7 @@ transform do not change. For example::
     similar to PostgreSQL's ``text`` type.
 
     .. _citext: https://www.postgresql.org/docs/current/citext.html
-    .. _the performance considerations: https://www.postgresql.org/docs/current/citext.html#AEN178177
+    .. _the performance considerations: https://www.postgresql.org/docs/current/citext.html#id-1.11.7.17.7
 
 ``HStoreField``
 ===============

docs/releases/1.7.2.txt

@@ -157,7 +157,7 @@ Bugfixes
   could crash with an ``AppRegistryNotReady`` exception (:ticket:`24007`).
 
 * Added quoting to field indexes in the SQL generated by migrations to prevent
-  a crash when the index name requires it (:ticket:`#24015`).
+  a crash when the index name requires it (:ticket:`24015`).
 
 * Added ``datetime.time`` support to migrations questioner (:ticket:`23998`).
 

docs/topics/testing/tools.txt

@@ -1008,7 +1008,7 @@ out the `full reference`_ for more details.
     `Selenium documentation`_ for more information.
 
     .. _Selenium FAQ: https://web.archive.org/web/20160129132110/http://code.google.com/p/selenium/wiki/FrequentlyAskedQuestions#Q:_WebDriver_fails_to_find_elements_/_Does_not_block_on_page_loa
-    .. _Selenium documentation: http://seleniumhq.org/docs/04_webdriver_advanced.html#explicit-waits
+    .. _Selenium documentation: https://www.seleniumhq.org/docs/04_webdriver_advanced.html#explicit-waits
 
 Test cases features
 ===================