Fixes recently removed libmkv from libvpx/third_party.

resources/install/README.Debian

@@ -3,7 +3,6 @@ libjitsi depends on. In the same folder where libjitsi is checked out do:
 svn checkout http://ice4j.googlecode.com/svn/trunk/ ice4j
 git clone https://github.com/jitsi/libsrc.git
 svn checkout svn://svn.code.sf.net/p/fmj/code/ fmj
-git clone https://chromium.googlesource.com/webm/libvpx
 And then in libjitsi do: ant deb-src
 This will create orig.tar.gz debian sources that can be used to debuild
 debian package.
\ No newline at end of file

resources/install/build-debian.xml

@@ -120,11 +120,8 @@
         </unzip>
 
         <!-- libmkv -->
-        <copy todir="${tmp}/libjitsi/lib/src/libmkv">
-            <fileset dir="../libvpx/third_party/libmkv">
-                <include name="**/*"/>
-            </fileset>
-        </copy>
+        <unzip src="../libsrc/libmkv.zip"
+               dest="${tmp}/libjitsi/lib/src"/>
 
     </target>