Updated release checklist with merge reminder.
Updated release checklist with merge reminder.

davismj/Durandal,BlueSpire/Durandal,mryellow/Durandal,Craga89/Durandal,Craga89/Durandal,mryellow/Durandal,BlueSpire/Durandal,davismj/Durandal,BlueSpire/Durandal,Craga89/Durandal,mryellow/Durandal,davismj/Durandal,mryellow/Durandal,davismj/Durandal,BlueSpire/Durandal,Craga89/Durandal