Fix some small issues
Ranger 3 US and EU downloadable missions.
Ranger 3 JP downloadable missions.

Someone needs to test if the US and JP missions actually work, I just
based them off some saves off GameFAQs and how the EU version handles
data.
Only count lines with data as for dls1 count
Added simple stats server
Ranger 2 downloadable missions.
Merge pull request #15 from AdmiralCurtiss/dlcrestore

Restored downloadable missions for Pokemon Ranger 2 and 3.
Trying to make natneg more stable
Error checking

Why does this error even occur? Does the session get pruned by keep
alive or is it not properly started (between server restarts)?