[Nightly] Update v0.7.2570a

- Fixed crash in the scripting system when using null as an index value in a list or string. Now the error is reported indicating the line where it occurred.

- Removed requirement of "active connection" in the exploits.

- Fixed bug #384: Uploading file gets stuck on "Processing..."

- Fixed bug that caused the name entered by the player to be ignored when downloading an exploit from the store.

- Fixed crash in the scripting system when passing null as value in the methods: abs, acos, asin, atan, char(i), ceil, cos, floor.