Drop Horde_Dav_Client.

After Sabre_DAV has been refactored, it's impossible to still use our own HTTP
client. This is very pity, because using remote calendars *requires* curl now.
We still need to test for this in Kronolith though, to not make it a hard
requirement.

framework/Dav/doc/Horde/Dav/UPGRADING

@@ -0,0 +1,19 @@
+=====================
+ Upgrading Horde_Dav
+=====================
+
+:Contact: dev@lists.horde.org
+
+.. contents:: Contents
+.. section-numbering::
+
+
+This lists the API changes between releases of the package.
+
+
+Upgrading to 2.0.0
+==================
+
+  - Horde_Dav_Client
+
+    This class has been removed. Use the \Sabre\DAV\Client directly instead.

framework/Dav/package.xml

@@ -10,7 +10,7 @@
   <email>jan@horde.org</email>
   <active>yes</active>
  </lead>
- <date>2015-11-16</date>
+ <date>2015-11-18</date>
  <version>
   <release>2.0.0</release>
   <api>2.0.0</api>
@@ -447,6 +447,7 @@
     <dir name="Horde">
      <dir name="Dav">
       <file name="LICENSE" role="doc" />
+      <file name="UPGRADING" role="doc" />
      </dir> <!-- /doc/Horde/Dav -->
      </dir> <!-- /doc/Horde -->
    </dir> <!-- /doc -->
@@ -464,7 +465,6 @@
        <file name="Sql.php" role="php" />
       </dir> <!-- /lib/Horde/Dav/Storage -->
       <file name="Auth.php" role="php" />
-      <file name="Client.php" role="php" />
       <file name="Collection.php" role="php" />
       <file name="Exception.php" role="php" />
       <file name="File.php" role="php" />
@@ -585,8 +585,8 @@
  <phprelease>
   <filelist>
    <install as="LICENSE" name="doc/Horde/Dav/LICENSE" />
+   <install as="UPGRADING" name="doc/Horde/Dav/UPGRADING" />
    <install as="Horde/Dav/Auth.php" name="lib/Horde/Dav/Auth.php" />
-   <install as="Horde/Dav/Client.php" name="lib/Horde/Dav/Client.php" />
    <install as="Horde/Dav/Collection.php" name="lib/Horde/Dav/Collection.php" />
    <install as="Horde/Dav/Exception.php" name="lib/Horde/Dav/Exception.php" />
    <install as="Horde/Dav/File.php" name="lib/Horde/Dav/File.php" />
@@ -1105,7 +1105,7 @@
    <stability>
     <release>stable</release>
     <api>stable</api></stability>
-   <date>2015-11-16</date>
+   <date>2015-11-18</date>
    <license uri="http://www.horde.org/licenses/bsd">BSD-2-Clause</license>
    <notes>
 * [jan] Update to SabreDAV 2.1 (Stefan Popp &lt;se12m014@technikum-wien.at&gt;).