the 2 key/value approach iie
but nb policy for all new things is to use the '&' approach for mnemonics.
(this makes translation team work a lot easier)
(and older parts are supposed to change to use the '&' approach and there
have been various issues on them filed.
There are some calls to methods that set the mnemonic via MNE_* properties in the Bundle.properties file, these need to
be removed or changed to use another solution that involves the & style of setting mnemonics. Also need to remove all
references to MNE_ in the properties file.