Makes XML output more compact and clear.
Increment IO version of XML file to support old versions of XML files
One also could specify IOVersion for TBufferXML to produce old-style
kind of output

This fixes ROOT-7005.

See ROOT-6980

See https://root.cern.ch/phpBB3/viewtopic.php?f=13&t=19070 .

Now in JSROOT all draw functions registered together with
list of supported draw options. Via item context one could
select which options should be used for drawing
Several other small fixes:
- https usage in root.cern.ch/js,
- new menu functionality in 3D painter
- disaply of StreamerInfo in separate window

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>

  file. Typically it reduces the file size by a factor 10 (compare to the previous
  implementation) for normal plots with math formulae and greek characters.

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>

TMinuit, unlike TMinuit2, is to fragile when it comes to a treatment
of the floating point which deviates too much from the IEEE standard.

(cherry picked from commit 7156af1c)

Conflicts:
	geom/geom/src/TGeoCache.cxx

Major fixes and new features for the parallel world. Declaring the physical nodes and overlaps has to be done by name. Overlaps can be automatically detected after tracking. The parallel world can be drawn.

(cherry picked from commit 9dcefdea)

Conflicts:
	geom/geom/inc/TGeoParallelWorld.h
	geom/geom/src/TGeoNavigator.cxx
	geom/geom/src/TGeoParallelWorld.cxx
	tutorials/geom/parallel_world.C

(cherry picked from commit f92f7381)

Works around issue with ATLAS forward decl of

namespace Eigen{
  namespace internal{
    template <typename T, int Size, int MatrixOrArrayOptions,
              int Alignment = (MatrixOrArrayOptions & DontAlign) ? 0 : (((Size * sizeof(T)) % 16) == 0) ? 16 : 0>
    struct plain_array;
}}

This reverts commit 52e58e64.

TInterpreter::SetClassAutoParsing still completely disable the auto parsing
mechanishm, when set to true, the payload is parsed *immediately* upon library
load.

   TInterpreter::SuspendAutoParsing autoParseRaii(gInterpreter);

request the interpreter does *not* consider the header files that have been
registered to be parsed on demand but have not been (auto)parsed yet. This
allows to delay even further the parsing of those headers.

Restrict the search for a type when it is indeed (more likely) contextually correct that we have a casting operation.

The parser (or rather the BalancedDelimiterTracker) was doing a Parser::cutOffParsing() because
of an overflow of open ( - because we never reset the count.

in order to forgive the deviation coming from the fast builds

for the fast builds.

1. Sniffer now provides basic type name and array dimensions
for requested object (available via h.json request)
2. Some of the sniffer fields stored in native format (without quotes)
3. Use RZip.h in the sniffer

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>

Even when several TH1/TGraph/TF1 objects
with fill attribute overlap each other,
one able to get tooltip for underlying objects.

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>

Fix to allow any boolean value in the configuration with -Dxxx=yyy. (-Dvc=on was not working properly)

to ease comparisons throughout the whole cmake code.

Introduce a more "modern" look and feel by flattening the frames and widgets (avoiding double border) and using a more grey-ish color scheme.
To select the new style, add the "flat" keyword in the Gui.Style entry of the $(ROOTSYS)/etc/system.rootrc (or in the $(HOME)/.rootrc) file. For example:
Gui.Style:                  modern-flat

N.B. The default style is kept as "modern" for the time being

this allows the testsuite to pass, to protect against slc6-cc7
compatibility issues but does not fix the naming issue with regex,
the name of which cannot be constructed on mac and is wrong on
linux.