MOBSDK-593/495

MOBSDK-495:
users will have to set a boolean flat kAlfrescoTrustedSSLServerFlag in the parameters to enabled SSL self certificate handling. This has also been implemented in the CMIS library.

MOBSDK-593:
permissions will be returned without making a network call if they are available on a node. There is an important caveat when users delete a node on the server. Unless the developer destroys the object, and the permissions will still be available (along with the node object) even though it no longer exists on the server.