* Warning now only logs if error level < 5.
* Warning buffer size has been increased to '10000' (internal buffer size).
* Error is now hooked as well.
* Error buffer size has been increased to '4096' (internal buffer size).
* Con_NPrintf has been refactored; 'cl_showhoststats' has been removed.
* Con_NPrintf buffer size has been increased to '4096' (MAXPRINTMSG).
* CTextOverlay::Con_NPrintf now checks the first byte in the character buffer before rendering anything, and sets the first byte to a terminating null character after rendering. This fixes the bug causing the host_speeds overlay to be still drawn while the cvar 'host_speeds' was disabled.