Fixed navigating back through job submission wizard
Clear solutions tree in script builder form
Fixed safeClone (computeService != storageService!)
Handle job duplication
VM preselection and empty solutionid test
Merge pull request #43 from squireg/master

VHIRL-64 and VHIRL-70
Merge branch 'master' of https://github.com/AuScope/VHIRL-Portal

# By Geoff Squire
# Via Geoff Squire
* 'master' of https://github.com/AuScope/VHIRL-Portal:
  VM preselection and empty solutionid test
  Handle job duplication
  Fixed safeClone (computeService != storageService!)
  Clear solutions tree in script builder form
  Fixed navigating back through job submission wizard