InMemory: do not pass TypeMutability info in type def for CMIS 1.0 endpoints

git-svn-id: https://svn.apache.org/repos/asf/chemistry/opencmis/trunk@1632214 13f79535-47bb-0310-9956-ffa450edef68
InMemory: add PoweredBy Apache logo to entry page

git-svn-id: https://svn.apache.org/repos/asf/chemistry/opencmis/trunk@1632216 13f79535-47bb-0310-9956-ffa450edef68