New WorkCell XML loader

[jimali]

Hi all,

i just wanted to say that we are going to work on a new workcell
loader based on xerces. We want to fix the current specification and
add new features that we missed in the old format. If you have any
requests or ideas to this new specification then please post it here,
or at the wiki

http://code.google.com/p/robwork/wiki/XMLLoader05

/Jimmy