Upgrade to jclouds 2.0.0

Release notes:

https://jclouds.apache.org/releasenotes/2.0.0/

pom.xml

@@ -261,7 +261,7 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <java.version>1.7</java.version>
-    <jclouds.version>2.0.0-SNAPSHOT</jclouds.version>
+    <jclouds.version>2.0.0</jclouds.version>
     <slf4j.version>1.7.21</slf4j.version>
     <surefire.version>2.19.1</surefire.version>
   </properties>