Bug 904202.  Make sure we remove our nsContentLists from list caches during unlink.  r=smaug
Bug 920209.  Use nsAutoString in DOMString, to reduce allocations.  r=smaug
Bug 784739 - Switch from NULL to nullptr in js/src/ctypes/; r=ehsan
Bug 784739 - Switch from NULL to nullptr in js/src/{devtools,ds,gdb,perf}/; r=ehsan
Bug 784739 - Switch from NULL to nullptr in js/src/builtin/; r=ehsan
Bug 784739 - Switch from NULL to nullptr in js/src/frontend/; r=ehsan
Bug 784739 - Switch from NULL to nullptr in js/src/gc/; r=ehsan