Graal v4.02 revision 10 released

[Admins]

New versions for Windows, Linux and Mac have been uploaded. If you have already installed it then just connect to the server list, otherwise follow following urls:

Windows:http://www.graalonline.com/downloads/Graal4Setup.exe
Linux:http://www.graalonline.com/downloads/graal4setup
Mac:http://www.graalonline.com/downloads/Graal4.dmg.bz2

Updates:
- fixed the problem with "Cannot open <file> for writing" and such on Linux/Mac/Graal3D, it was a problem with npcs using txt files or similar as image
- optimized saving of tile definitions (addtiledef) to reduce the number of file operations
- fixed the gmap-"double-warp" when entering a gmap from another level
- added base64encode(string) and base64decode(string) functions
- the guest mode is hidden now, until it will be officially opened