Update versions/README for 1.8.6
Removed unused imports.
Throw an informative exception if the IDE can't find a softpkgref when launching in the sandbox
Add comment
Apply changes to LocalApplicationFactory from two commits on develop

Apply the refactor from 8d9bfe81b2cbe3ec12cd874a840f18c559a1b389
Apply commit 094574a5026fbefc70217ba1bbb0c5373db1435b
Better progress reporting when launching waveforms with the sandbox
Store the repID in a model object to avoid invalid thread Access.  Check
for null in validation and FileStore exporter.
Merge remote branch 'origin/develop-1_8' into develop-1.9

* origin/develop-1_8:
  Store the repID in a model object to avoid invalid thread Access.  Check for null in validation and FileStore exporter.
  Update versions/README for 1.8.6
Merged in changes from develop-1_8
override three param version of protected handleStreamSRIChanged(..) vs two param version