In order to use a remap plugin, you must implement the functions below:
Initialization function: called only once, when the plugin is loaded Plugin Initialization
Instantiation function: called each time it's used in a remap rule (this function is what processes the pparam values)
"Processing" function: the entry point used by Traffic Server to find the new URL to which it remaps; called every time a request comes in
(Destruction function?): (optional) a "cleanup" function called only if/when the plugin is unloaded
((Editor's note: text TBD; above text still under development))