Bump version numbers.

Reviewed-by: iustinp

doc/install.sgml

@@ -597,8 +597,8 @@ vgextend xenvg /dev/sdd1
       </para>
 
         <screen>
-tar xvzf ganeti-1.2b1.tar.gz
-cd ganeti-1.2b1
+tar xvzf ganeti-1.2b2.tar.gz
+cd ganeti-1.2b2
 ./configure --localstatedir=/var --sysconfdir=/etc
 make
 make install
@@ -642,8 +642,8 @@ mkdir /srv/ganeti/ /srv/ganeti/os /srv/ganeti/export
 
       <screen>
 cd /srv/ganeti/os
-tar xvf instance-debian-etch-0.1.tar
-mv instance-debian-etch-0.1 debian-etch
+tar xvf instance-debian-etch-0.2.tar
+mv instance-debian-etch-0.2 debian-etch
       </screen>
 
       <para>