Toggle command fixes#29

Open

tcunha wants to merge 3 commits intoryanflannery:masterfrom

Commits on Feb 12, 2013

Prevent crash when registering a toggle.
Tiago Cunha
committed
Plug memory leak when removing a toggle.
Tiago Cunha
committed
It's valid to pass a NULL pointer to realloc.
Tiago Cunha
committed