Some warning going to error and viceversa:

Some warning going to error and viceversa:
1) When unloading an object from the cache, prompt just a warning and not an error if the object is not in the cache. In particular in reconstruction, first check for some objects if they are in the cache before asking to unload them.
2) Prompt an error instead of a debug message just before throwing an exception in AliCDBLocal::GetEntry, in the case of missing entry. The cause of the abort will like this be clear also in systems which are not able to prompt the error message of the runtime error.