to the AddEntry function was changed according to the fact that the

None -> null pointer conversion is no longer implemented in Cppyy

Most of user-defined ui5 panles will use "currentdir" as location of
XML/JS/JSON files. To effectively control browser cache, 
client version should be used here as well

Creates and updates primitive geometry with tracks, which regularly
updated in browser.

Can be used together with onPanelInit and onPanelExit methods

Adjust with latest changes in RWebWindow

This is simple controller for openui5-based widgets, shown in RWebWindow

Avoid direct usage of RWebWindowsManager

Shows example for model object, used for communication in both
directions

This allows running the tests with pre-fetched file in environments without
network - like e.g. the Fedora package build server

It shows simple communication between c++ server and JS client

[RF][Docs] Documentation updates / fixes collected througout june.

- Add a tutorial for the Barlow-Beeston method, rf709_BarlowBeeston.C.
- Remove legacy iterators from RooHistConstraint and RooParamHistFunc,
which are used to implement the Barlow-Beeston method.
- Replace iterative logGamma in RooHistConstraint by std::lgamma
- Make sure that bins with zero entries don't get touched by MINUIT.
This reduces the number of degenerate parameters without any effect, and
stabilises the covariance matrix.
- Update documentation of the respective classes.

* Allow to display tutorial images with JavaScript

* use find instead of find_first_of

* Output first <div>  then <script>

* Make sure each canvas size is the right one in case of several canvases.

The new cmake option `dataframe` enables building the ROOTDataFrame
library and takes care of implication on the build system. The option is
enabled by default unless a 32bit system is detected.