T2-936 bump trunk version number of t2infrastructure to 2.1-SNAPSHOT
T2-936 bump trunk version number of t2infrastructure to 2.1-SNAPSHOT

git-svn-id: a42989053a931bd3e6694c3ff007dafbce7776dc@9619 bf327186-88b3-11dd-a302-d386e5130c1c

apache/incubator-taverna-engine,apache/incubator-taverna-engine