*Made the Sentry Mod usable even without Archery Mod.

*If you do not have Archery Mod installed and want to use "projectiles" as a fule for the sentry, you will have a new item to craft, called "Sentries Arrow" (regular arrow recipe, configurable)

*Fixed some bugs related to the "Add Friends" button for clients.

*The sentry now remember properly its owner even if the owner is not connected to the server when it is restarted.

*Fixed the fact that the sentry was not operable anymore.

*Compatibility update

*Fixed the function "ReoveTag" which obviously doesn't exist....

*Completly reworked the sentry targeting system.
*Complete change of the interaction with the sentry. By left clicking on the sentry, you will now open a widget (made by David K.) from where you can switch to the mode you desire.
*From the new widget you can also add "friends" to the sentry. Friends are players that you want the sentry to not target even in destroyer mode. Their followers will be ignored by the sentry as well.
*You can remove a "sentry friend" by redoing the same operation.
*You can now renounce to your ownership on a sentry (still from the widget). The sentry can then be claimed by any player.
*Only the owner can interact with the sentry control panel now. Other player will see a locked panel.

*Fixed (hopefully) a crash occuring for some occult reasons
*The sentry should not attack anymore the followers of the other players in defender mode
*The sentry will now attack originally passive mobs in defender mode if they become aggressive toward the owner of the sentry

*Fixed a crash for clients while the game is checking if Archery Mod is enabled

*Fixed a bug in the "burnable" fuel mod. Now the fuel level will increase for any burnable fuel that is input in the sentry. The fuel value ration between item is the same than for the flingomatic, cmpfire, etc...

First alpha release