Revert " update glib2 and gobject-introspection"

This reverts commit 16c12c8f69.

system/base/glib2/pspec.xml

@@ -13,7 +13,7 @@
         <IsA>library</IsA>
         <Summary>A library of handy utility functions</Summary>
         <Description>glib2 is the low-level core library that forms the basis for projects such as GTK+ and GNOME. It provides data structure handling for C, portability wrappers, and interfaces for such runtime functionality as an event loop, threads, dynamic loading, and an object system.</Description>
-        <Archive sha1sum="afe88c1d64a0f9bdc140e87a84ef9423ce476ca5" type="tarxz">mirrors://gnome/glib/2.48/glib-2.48.0.tar.xz</Archive>
+        <Archive sha1sum="2bd8f8d87668635f45ccac2e9166a4c4c3d65eac" type="tarxz">mirrors://gnome/glib/2.46/glib-2.46.2.tar.xz</Archive>
         <BuildDependencies>
             <Dependency versionFrom="8.36">libpcre-devel</Dependency>
             <Dependency>zlib-devel</Dependency>
@@ -132,8 +132,8 @@
 
     <History>
         <Update release="1">
-            <Date>2016-04-01</Date>
-            <Version>2.48.0</Version>
+            <Date>2016-03-10</Date>
+            <Version>2.46.2</Version>
             <Comment>First release</Comment>
             <Name>Ertuğrul Erata</Name>
             <Email>ertugrulerata@gmail.com</Email>