Let's be GPL. Change version to snapshot

src/main/java/com/drtshock/playervaults/vaultmanagement/Serialization.java

@@ -1,3 +1,19 @@
+/* 
+ * Copyright (C) 2013 drtshock
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.drtshock.playervaults.vaultmanagement;
 
 import java.util.ArrayList;

src/main/java/com/drtshock/playervaults/vaultmanagement/VaultHolder.java

@@ -1,3 +1,19 @@
+/* 
+ * Copyright (C) 2013 drtshock
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.drtshock.playervaults.vaultmanagement;
 
 import org.bukkit.inventory.Inventory;

src/main/java/com/drtshock/playervaults/vaultmanagement/VaultManager.java

@@ -1,3 +1,19 @@
+/* 
+ * Copyright (C) 2013 drtshock
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.drtshock.playervaults.vaultmanagement;
 
 import com.drtshock.playervaults.PlayerVaults;

src/main/java/com/drtshock/playervaults/vaultmanagement/VaultOperations.java

@@ -1,3 +1,19 @@
+/* 
+ * Copyright (C) 2013 drtshock
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.drtshock.playervaults.vaultmanagement;
 
 import com.drtshock.playervaults.PlayerVaults;

src/main/java/com/drtshock/playervaults/vaultmanagement/VaultViewInfo.java

@@ -1,3 +1,19 @@
+/* 
+ * Copyright (C) 2013 drtshock
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package com.drtshock.playervaults.vaultmanagement;
 
 /**