Enable the inclusion of roottest.
Add build option include_roottest.
Merge branch 'master' of http://root.cern.ch/git/root

Include roottest.
Merge branch 'master' of http://root.cern.ch/git/root
Fix the dictionaries for GenVector, SMatrix. Changed regular expression to detect errors in tests (CMake)
Change the ROOT logo for ROOT 6 User’s Guide
Change the ROOT logo
Fixes for stressRooFit and stressGeometry (CTest)
Add stressHistFactory_ref.root and stressRooStats_ref.root in the binary distribution
getAsStringInternal() appends; clear result before.
Update the fix to v5 template argument name to support const and pointers

Support for collection<const NameMissingScope*>
(fix stressRooFit and ROOT-6282)
Add HistFactoryTest.tar to the binary distribution
Also support TypeAliasDecl (ROOT-6308).
Remove obsolete config switches.

Fixes:
Warning: Tag `SYMBOL_CACHE_SIZE' at line 290 of file /mnt/vdb/lsf/cling-37f64ff95641-full-1498388/obj/tools/cling/docs/doxygen.cfg has become obsolete.
To avoid this warning please remove this line from your configuration file or upgrade it using "doxygen -u"
Warning: Tag `SHOW_DIRECTORIES' at line 490 of file /mnt/vdb/lsf/cling-37f64ff95641-full-1498388/obj/tools/cling/docs/doxygen.cfg has become obsolete.
To avoid this warning please remove this line from your configuration file or upgrade it using "doxygen -u"
Warning: Tag `HTML_ALIGN_MEMBERS' at line 819 of file /mnt/vdb/lsf/cling-37f64ff95641-full-1498388/obj/tools/cling/docs/doxygen.cfg has become obsolete.
To avoid this warning please remove this line from your configuration file or upgrade it using "doxygen -u"
Warning: Tag `USE_INLINE_TREES' at line 989 of file /mnt/vdb/lsf/cling-37f64ff95641-full-1498388/obj/tools/cling/docs/doxygen.cfg has become obsolete.
To avoid this warning please remove this line from your configuration file or upgrade it using "doxygen -u"
Warning: doxygen no longer ships with the FreeSans font.
You may want to clear or change DOT_FONTNAME.
Rely on the expr kind, instead of some compiler generated exprs which can be missing.
Ensure that rootcling is built from object files (object libraries) instead of shared libraries to avoid core dumps. It should fix issue ROOT-6276.
Put in TMetaUtils and make more generic the ReplaceAll routine.
Match a good portion of the function selection rules:

Act only at string level. We would need a lookup to solve all issues,
for example template functions.
Align linkdef to code, adding const to char*.
Add a filename to the unnamed macro handling. Fixes ROOT-4760.