o TInterpreter
    - Add virtual interface DeleteVariable(const char* name)

  o TCInt
    - Implement DeleteVariable(const char* name)

  o RooBanner
    - Increment version tag to v3.58

  o RooComplex
    - Unified handling for cling/cint in #warn

  o RooCintUtils
    - Remove "Api.h" as all calls now routed through TInterpreter

  o RooNLLVar
    - Improved use of std namespaces (imported from master)

  o RooNameSet
    - Improved use of std namespaces (imported from master)

  o RooWorkspace
    - Removed last direct use of CINT by routing variable deletion through new TInterpreter interface