Testing some modification to tree content provider.
Ui model improved: avoid returning null
Refactoring Trace loader
histogram icons and layout
Histogram view has configuration trees
tree check state management ongoing
tree management: check if changed
tree ongoing
button management
considering type and producer filters for histogram
New buttons for tree manipulation
bugs found
Refactoring and bug fixes
fix
icons
new icons
Removed old commit for already fixed bug
restore time range when dezooming
bug fix: recursive function updated to new model
First version, not streamed yet