Replace cout calls with printf calls.   I am leaving iostream in the includes for now, so this compiles.   The macros are handled in a separate branch and that will take care of all macro couts
remove cout in comments
change cout calls to printfsremove iostream and see if it builds
resolved conflicts in file

Merge branch 'no_cout_in_bsl' of https://github.com/weiyeh/bsl into no_cout_in_bsl

Conflicts:
	groups/bsl/bsls/bsls_ident.t.cpp