Hotfix to te previous update

This should fix the following error:
[string "../mods/workshop-503330921/modmain.lua"]:164: attempt to index field 'original' (a nil value)

- Removed default API: "dstservers.jacklul.com/api" as my list now provides status data directly from Klei's servers.

It is no longer required to use this if you want to have your server's status displayed on my web list ;D

- Update for Caves Beta branch: TheNet:GetClientTable() steamid field got renamed to netid, it will still be returned as steamid in the status data

This update should not break anything for non-beta servers.

- Added nil check for overrides table in case server has empty worldgenoverride.lua or doesn't have it at all
- also just in case for preset too

- Updated url_encode function again - "&" character issue this time, *sigh*
I TESTED IT EARLIER, WHYYYY

- Added world settings / overrides variables

how the hell client_only_mod set itself magically to true (probably my magic hand did this)

- You can now use two APIs at the same time

- Updated url_encode function
- Updated default API_URL due to some issues with my API when using mod_rewrite - http://dstservers.jacklul.com/api/push/ is now deprecated
- Example API script is not longer provided within the mod, it is instead posted on pastebin: http://pastebin.com/exZ7Zu06