Reading and writing with Jaxb now performed
* Needs arcpoints adding
* Needs a few bugs fixing such as refreshing tokens
Fix bugs in blank values
read in/out arcpath
Fix bug in displaying arc weights

* Fixed by storing reference to tab
Move PetriNet tab up to arcview

* It will be useful to display arcpoints
Fix copy and paste bug

* Paste was not enabled due to old call to applicationController
Remove debug ctr in ArcView
Fix up translation,

Can now move arc paths
All points respond to movememnt changes
Can now add arcs points and move them

* Made use of findPoint in arcPath
Fix arc dissapearing logic

* Add in a maxX and maxY value to keep track of intermediate values