* Added validity checks for player names, they must be UTF-8 encoded, else game clients will crash attempting to set non-UTF-8 player names in RUI.
* CServer::RejectConnection now takes a 'v_netadr_t*', previously it was 'user_creds_s*', which worked as 'v_netadr_t' is the first member in 'user_creds_s'.
* Programmer must now manually pass a character buffer to 'v_net_adr::GetAddress(...)'.
* Fix history duplication by removing trailing white space characters from submitted commands in console.
* Fix out of range exception caused by caching svConVar.size() in CConsole::BuildSummary while we are modifying it.
* Fixed memory leak caused by extraneous Strdup calls in CConsole.
* Renamed variables and structure members, static vars in id3dx.cpp are not prefixed with s_, IBrowser_Config is now m_BrowserConfig.
* Performed code cleanup in id3dx.cpp.
Allow searching for multiple occurrences, the main reason for this addition is that some RTTI object locators reference 2 (or more) VFTables, the ConVar class is a good example., where we have 2 separate VFTables, one implementing ConCommandBase (which implements its own IConVar), the other implementing just IConVar for ConVar (2 VMT pointers in one class).
* Use c++ methods as much as possible.
* Use enum types for accessing NavMesh objects from array.
* Use size_t for for loops when testing against size types.
* Don't compute strlen twice of more on the same string.
* Don't use unnecessary c string casts if there is a method with a std::string overload.
* Don't create string objects from string pointers if we could use them directly.
* Don't initialize RCON password twice on each change, and don't set if the new password equals the old.
