Fixes pre R15B01 building.
I have a feeling the testing team will be using R14B04 which will fail to build a rebar release correctly.
Older compile of rebar generates a .rebar temporary directory.
Updated server with a quick runner script.
Renamed server to distressd and reduced pool size from 100 to 10.
Makes executables use absolute directories.
We can now link directly to these builds in our path and not have to worry about missing commands or libraries.