Use __FILE__; GetCurrentMacroName() really returns the currently .x-ed macro.
Mention change in behavior of TInterpreter::GetCurrentMacroName().
Add an implementation of std::to_string, missing on cygwin/gcc 4.8.2 & 4.8.3
Support all possible CMake boolean literals for build options (1, ON, YES, TRUE, Y / 0, OFF, NO, FALSE, N, IGNORE, NOTFOUND, "")
Merge branch 'master' of https://root.cern.ch/git/root
#undef R2, R4, R6 once done.