AppDefaults\<appname>\DllOverrides configuration section.
- Better support for multiple --dll options.
- Added warning message to discourage putting multiple dlls in a
single override entry.
- Add the possibility to use path names with the --dll command line
option
- Add the possibility to use the --dll command line option several
times.
- Note: The colon-sign is now exchanged with the plus-sign, as it is
part of dos path names.