* Must compare user region with previous calling of the same method to determine if we should look the user up.
* The first time, the previous region handle will be 0, so therefore it'll use the cached version.
* The second time, previousRegionHandle will be what we looked up on the first round
* The third time, it'll say.. we tried to deliver it once with or without lookup, we tried to deliver it a second time with lookup, and failed both times so end!
the IM module and makes it into a module of it's own, which can be used by
all other modules. Removes some ugly hacks. Refer to the IM module to see
how it's used. Also fixes the persistence issue (Mantis #2598)