Created a better stand-in for nullptr when building with c++98.
Created a better stand-in for nullptr when building with c++98.

tst-mswartz/earthenterprise,tst-ppenev/earthenterprise,tst-ppenev/earthenterprise,tst-ppenev/earthenterprise,tst-ccamp/earthenterprise,tst-ccamp/earthenterprise,tst-ppenev/earthenterprise,google/earthenterprise,tst-ccamp/earthenterprise,tst-ppenev/earthenterprise,tst-eclamar/earthenterprise,tst-ppenev/earthenterprise,google/earthenterprise,tst-ccamp/earthenterprise,tst-mswartz/earthenterprise,tst-eclamar/earthenterprise,tst-ppenev/earthenterprise,google/earthenterprise,tst-ccamp/earthenterprise,tst-ccamp/earthenterprise,tst-ccamp/earthenterprise,tst-mswartz/earthenterprise,google/earthenterprise,tst-ppenev/earthenterprise,google/earthenterprise,tst-ccamp/earthenterprise,tst-lsavoie/earthenterprise,tst-mswartz/earthenterprise,tst-lsavoie/earthenterprise,tst-eclamar/earthenterprise,tst-eclamar/earthenterprise,tst-lsavoie/earthenterprise,tst-lsavoie/earthenterprise,tst-mswartz/earthenterprise,google/earthenterprise,tst-eclamar/earthenterprise,tst-lsavoie/earthenterprise,tst-lsavoie/earthenterprise,google/earthenterprise,tst-eclamar/earthenterprise,tst-lsavoie/earthenterprise,tst-lsavoie/earthenterprise,tst-mswartz/earthenterprise,tst-eclamar/earthenterprise,tst-ccamp/earthenterprise,tst-ppenev/earthenterprise,tst-eclamar/earthenterprise,tst-eclamar/earthenterprise,google/earthenterprise,tst-mswartz/earthenterprise,tst-mswartz/earthenterprise