a better way to find views even if not on the active workbench
XAS-102 empty string should be allowed
XAS-102 do not throw an exception when the String is wrong, simply empty
the combo.

If you throw an exception then the editor will not open properly and so
the user cannot have a chance to fix it.
RichBeans: an empty string should be a valid entry
Merge branch '8.30' of ssh://dascgitolite@dasc-git.diamond.ac.uk/gda/gda-common-rcp.git into 8.30
Revert "RichBeans: an empty string should be a valid entry"

This reverts commit 8c9487c93697dc4191d4efd73dc211e3096d1342.
XAS-102 empty string should be allowed
empty string should be alowed for rich bean values. the second uiToBean
was missed.
Merge remote-tracking branch 'origin/8.30'