InMemory, TypeMutability: 
 - make incomplete types complete, 
 - filter items in getChildren() for CMIS 1.0 calls, 
 - allow colon in ids, 
 - add 1.1 allowable actions

git-svn-id: https://svn.apache.org/repos/asf/chemistry/opencmis/trunk@1457426 13f79535-47bb-0310-9956-ffa450edef68