Changed type of softlayer entry to fix final bibtex warnings.

Author: Jasper Dijt

ref.bib

@@ -441,11 +441,11 @@ @inproceedings{Wang2009Security
 year={2009},
 },
 
-@inproceedings{Softlayer2009Security,
-title={Service Level Agreement and Master Service Agreement},
-organization={Softlayer},
-year={2009},
-howpublished ={\url{http://cdn.softlayer.com/SoftLayer_MH_Agreement.pdf}},
+@misc{Softlayer2009Security,
+  title={Service Level Agreement and Master Service Agreement},
+  Author={Softlayer},
+  year={2009},
+  howpublished ={\url{http://cdn.softlayer.com/SoftLayer_MH_Agreement.pdf}},
 },
 
 @techreport{Wade2008Security,