Adding threading / display code to handle running the batch operations.
cleanup sample operation
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more refactoring, fixing a bug that happened if a task completed very
quickly.
switch to HK2 for finding operations.  Fix a bug in the ParentReplace
operation gui.
implement import/export button functionality
adding initial Find/Replace GUI
Merge branch 'master' of https://github.com/Apelon-VA/ISAAC.git
add error markers, validation to the Find/Replace operation GUI.
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add recursive children fetch method
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populate find/replace dropdowns with proper concepts
fix copy/paste bug
delay init of operations
fix inconsistency
make concept combos dragable
fill in Role related GUI stubs
add parent related operation gui stubs