Bugfix and tweaking update

Another bugfix update that brings some new feature !

Changelog :

• Added an option to override a ModCycle configuration with the server configuration panel's parameters
  
• Fixed bot's flying custom weapon when left handed mode was used (Bot are right handed so they were struggling to handle weapon this way)
  
• Fixed ModCycle corrupted room properties, preventing player so correctly and join a server using it
  
• Frag grenades are now able to damage vehicle when exploding
  
• Reworked custom server join procedure alone or in squad to ensure everything is correctly configured