net.cqueues: Fixes hardcoded timeout for first iteration
This was originally put in place as a fix for what ended up a cqueues bug: https://github.com/wahern/cqueues/issues/40
A check for a cqueues version with the bug fix is included.
For full information on our dependencies, version requirements, and
where to find them, see http://prosody.im/doc/depends
If you have luarocks available on your platform, install the following:
- luaexpat
- luasocket
- luafilesystem
- luasec