* detect the location of __malloc_context
* MallocContext class
* MetaArea class
* implement Mallocng.containing
* traverse nested groups
* add mallocng-find command
* fixup rebase
* add --shallow option to ng-find
* add --metadata option to ng-find
* add --all to ng-find
* autogen docs & lint
* fix from_start() calculation
* make code more portable by getting rid of magic numbers
* update 'belongs to stack' check
* Mallocng.secret becomes bytearray
but MallocContext.secret stays an int because we will be dumping it
* value -> values + move before loop
* fix secret offset
* get rid of hardcoded struct sizes
* use helper function for extracting ints