Provide sorting of these entries afterwards - like first show dirs, then
files.

Correctly handle request to same directory - reuse already build list of
items

Eliminate duplictaed model from geom viewer itself

Data model is slightly changed

RBrowser collects all existing items in requested directory. 
Exactly these items are delivered to the client with the reply object,
which just includes pointers on items. Reply object must be transient
and destroyed immediatly after conversion to JSON

RBrowserItem.hxx file will be used in other components, where browser
functionality is required

Once models classed have identical functionality, one could use the only
one.

to prompt a warning whenever something needs to be deprecated
irrespective of the R__SUGGEST_NEW_INTERFACE preprocessor variable
definition.

preprocessor variable.

otherwise in the class list its entry is huge.

Just to trigger next build

While context menu can be too long, group them by class names.
Makes much easier task gor jquery-ui to render such menu in small web
pages

Set better size (larger) for the ROOT Browser Window + use OpenUI5 version 1.64.1 (newer versions don't work anymore - to be investigated)

Now already server-side code filter out all menu entries, which are
related to GED and replaces whem by the only "Editor" entry.
In normal situation GED will be handled before

Main chnages compare to 5.6.x version:

1. Add support of TProfile2Poly class
2. Add support of TGeoOverlap class, provide access from TGeoManager
3. Add support of TGeoHalfSpace for composites
4. Implement TF2 drawings update, see tutorials/graphics/anim.C
5. Improve windows handling in flex(ible) layout
6. Better position for text in TH2Poly drawings
7. Enable projections drawing also with TH2 lego plots
8. Use gStyle attributes to draw histogram title
9. Use requestAnimationFrame when do monitoring, improves performance
10. Support eve7 geometry viewer - render data generated in ROOT itself
11. Many adjustment with new TWebCanvas - interactivity,
attributes/position updates
12. Provide initial WebVR support (#176), thanks to Diego Marcos
(@dmarcos)
13. Upgrade three.js 86 -> 102, use SoftwareRenderer instead of
CanvasRenderer
14. Upgrade d3.js 4.4.4 -> 5.7.0
15. Use d3.js and three.js from npm when running with node.js
16. Fix - support clipping for tracks and points in geo painter
17. Fix - drawing of TGeoNode with finder
18. Fix - key press events processed only in active pad (ROOT-9128)
19. Fix - use X0/Y0 in xtru shape (#182), thanks to @altavir
20. Move most of ui5-specific code into ROOT repository, where it will
be maintained
21. Provide special widget for object inspector

Not to make much confusion between different components. 

Patch by Bertrand Bellenot and me!

PyConfig contains an option IgnoreCommandLineOptions which can
be used not to pass to the PyROOTApplication the command line
arguments of the Python script. Instead of setting sys.argv
to [] manually, the aforementioned option can be used to
silence a Davix warning.

By default, PyROOT will send sys.argv to TApplication for the
arguments to be parsed. User arguments for the Python script
can be passed after a "-" or "--" in the command line and
they will be ignored by PyROOT.

The user can disable the aforementioned argument parsing by
adding a configuration option before any lookup in the ROOT module:
> import ROOT
> ROOT.PyConfig.IgnoreCommandLineOptions = True

This commit introduces the logic to display ROOT graphics when
using Python interactively. For that purpose, hooks are installed
to process the GUI events and to update the display.

Note that the threading approach is not used anymore: no thread
is explicitly created to process the events. The code based on
hooks should work on all the platforms, but it needs to be
tested. For the same reason, some code that handled the
threading case on Windows has been removed for now, and will be
restored only if necessary.

Most of the code has been picked from several parts of the
current ROOT.py and put together in the configuration of the
PyROOT TApplication.

The activation of the graphics is triggered only if ROOT is not
in batch mode. Such mode can be set by the user right after
importing ROOT.