Fix crash caused in threading code; attempting to call a callback function. The callback ptr was assigned to uninitialized memory. Manual debugging revealed 'CEngineVGui::RenderStart' (semantic name) was causing the crash. Further research revealed that both 'CEngineVGui_RenderStart' and 'CEngineVGui::RenderEnd' weren't even necessary to draw the VGui debug overlays. These have been removed.
Check if we are initialized, have at least one socket, and in case of a console log, if we have at least 1 authorized netconsole before serializing the message and sending the result.
Removed all checks for 'ui.rpak' and 'ui_mp.rpak'. None of these are useful for dedicated server. 'bUnconnected' has been changed to true (should had been in the first place). Promoted some integers to 64bit types to suppress compiler warnings, output code remained the same.
Added 2 new patches:
* Patch0: Unnecessary loop called from 'CModelLoader::UnloadModel'. This calls a 'nullsub' CMaterialGlue vtable method.
* Patch1: CClientState constructor; Removed due to high mem allocation during init (100MiB+). 'CClientState' is useless on dedicated, and all its feature are thereof disabled.
* Refactored code; kick & ban now share the same function.
* Kick & ban will now log a confirmation to the console.
* Players in refused list will no longer get banned, this was initially performed to keep load off the master server, but this turned out to be excessive. It also caused the side effect of having players banned even if their bans have been removed from the master server.
* 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.
Mapped out all members, also fixed the initialization of members. Some fields were never getting initialized, and m_iCurrentState was initialized improperly.
* Added new member 'm_nSpawnCount'.
* Added hook for 'CServer::RunFrame'.
* Abstract class 'IServer' no longer exists in this engine, inherit from 'IConnectionlessPacketHandler' instead (see RTTI in engine executable).
