Update the DMon archive location

The previous link resulted in an archive that changed, failing
the checksum test, even if the contents were the same.
Now we fixed the archive in the fork location of the DICE Monitoring
Service repository.

Change-Id: I5db340e09b8c8f14fd23ee244e80becc840e79d2

Author: matejart

cookbooks/dmon/attributes/default.rb

@@ -22,10 +22,10 @@
 # END OF DO NOT CHANGE BLOCK
 
 default['dmon']['tarball'] =
-  'http://github.com/dice-project/DICE-Monitoring/archive/'\
-  '483147e4398d955ee2497ea6f3601065b7abbbd0.tar.gz'
+  'https://github.com/xlab-si/DICE-Monitoring/releases/download/v0.2.5x/'\
+  'dice-monitoring-0.2.5x.tar.gz'
 default['dmon']['checksum'] =
-  'd2bbca8dd2257949cf9f924b158484e8aafa0bd82c70ba6e162a37be3b908fcd'
+  '69af0547bd29c6c3ac336f2659eb4bebb8d23eeb36b3d4527c72a88032caf3e3'
 
 default['dmon']['install_dir'] = '/opt/DICE-Monitoring'