Add support for arbitrary copying conversions.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/SGTools/trunk@543133 4525493e-7705-40b1-a816-d608a930855b
Fix gcc43 compilation.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/SGTools/trunk@543149 4525493e-7705-40b1-a816-d608a930855b
Disallow copying conversion of non-const objects.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/SGTools/trunk@543161 4525493e-7705-40b1-a816-d608a930855b
Fix clang warning.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/SGTools/trunk@543163 4525493e-7705-40b1-a816-d608a930855b