Update serverFunctions.js

patch for updating valid extensions to show in project tree view
[Emulink] Added a basic PIM Printer
Merge remote-tracking branch 'origin/beta'
Merge commit 'e78029e344efa702f989dd3f7237fa3720e6f3cc' into alpha

* commit 'e78029e344efa702f989dd3f7237fa3720e6f3cc':
  [Emulink] Added a basic PIM Printer
  Update serverFunctions.js
fixed issue where non pvs files were not added to the tree list when added to the project