Changes associated to builtin_xrootd option
Fix memory leak in TKeyXML (ROOT-6149).

From Sergey Linev

(cherry picked from commit aafd9a15914f33390dc516aa1e8eb3b2c0ce5481)
In TTreePerfStats measure unzipping cpu time only for assigned TTree

Rename FileUnzipEvent() function of TVirtualPerfStats and its derived
classes TTreePerfStats and TPerfStats to UnzipEvent() and make first
argument a TTree* (rather than the unused TFile*). Adjust caller in
TBasket to pass TTree* (only one client). This allows the
TTreePerfStats implementation to check whether the unzip is executed
on its TTree and disregard other operations

(cherry picked from commit cb62efcf872c3aea49dfa4964aa75c1b33e10c62)
Add clarification comment.
@_GLOBAL__I_aN can have multiple calls also
Collect all functions that we need to delete and delete them
Improve identification of the temp directory and location of main log file

The temp dir is now in the form
                 <temp>/<user>/stressProof-<pid>

explicitely notified when starting the test.
The main log file (the one from the stressProof binary is now located under the
same test directory and named 'main.log'. E.g.

$ ./stressProof
******************************************************************
*  Starting  P R O O F - S T R E S S  suite                      *
******************************************************************
*  Temp dir for this run: /tmp/ganis/stressProof-31556
******************************************************************
*  Log file: /tmp/ganis/stressProof-31556/main.log
******************************************************************
...
Fix startup issue in master

  Introduced when adding support for SetParallel in dynamic setups in summer 2013.
  Never debugged because Proof in the master had other problems at the time.
Make names of being loaded PAR package SETUP macros unique per process

  Attempt to solve concurrency conflicts; does not hurt in general.
Fix for building  netxng for CMake
Make it also possible to create transparent pads, not pad content only.
More fixes for building netxng for CMake
Merge branch 'master' of https://root.cern.ch/git/root
No need in a scope guard - I do not change any state, just clear context, nothing

to rollback.
Comment.
TDiamond resizing was not correct.
(From Anna).
A new tutorial demonstrating transparent pads.
A new tutorial for gl-pad (transparent pads).
Remove unused variable.
Fixes allowing to run tests with CMake

Allow to run application without setting ROOTSYS, and allowing to have the ROOT executables in a different directory than bin
(e.g. bin/Debug, or bin/Release, as set by default when building with Visual Studio)