Adds missing comments, simplifies proxy distinction, moves updating to own class and fixes formatting

src/main/java/net/knarcraft/minecraftserverlauncher/server/ServerVersionContainer.java

@@ -0,0 +1,88 @@
+package net.knarcraft.minecraftserverlauncher.server;
+
+import java.util.Map;
+
+public class ServerVersionContainer implements java.io.Serializable {
+
+    private String vanillaVersion;
+    private String snapshotVersion;
+    private String bungeeVersion;
+    private String waterfallVersion;
+    private String travertineVersion;
+    private Map<String, String> spongeVanillaVersions;
+
+    public ServerVersionContainer() {
+
+    }
+
+    public String getVanillaVersion() {
+        return this.vanillaVersion;
+    }
+
+    /**
+     * Sets the vanilla server version
+     *
+     * @param newVersion <p>The new vanilla server version</p>
+     * @return <p>This object</p>
+     */
+    public ServerVersionContainer setVanillaVersion(String newVersion) {
+        this.vanillaVersion = newVersion;
+        return this;
+    }
+
+    public String getSnapshotVersion() {
+        return this.snapshotVersion;
+    }
+
+    public ServerVersionContainer setSnapshotVersion(String newVersion) {
+        this.snapshotVersion = newVersion;
+        return this;
+    }
+
+    public String getBungeeVersion() {
+        return this.bungeeVersion;
+    }
+
+    public ServerVersionContainer setBungeeVersion(String newVersion) {
+        this.bungeeVersion = newVersion;
+        return this;
+    }
+
+    public String getWaterfallVersion() {
+        return this.waterfallVersion;
+    }
+
+    public ServerVersionContainer setWaterfallVersion(String newVersion) {
+        this.waterfallVersion = newVersion;
+        return this;
+    }
+
+    public String getTravertineVersion() {
+        return this.travertineVersion;
+    }
+
+    public ServerVersionContainer setTravertineVersion(String newVersion) {
+        this.travertineVersion = newVersion;
+        return this;
+    }
+
+    public Map<String, String> getSpongeVanillaVersions() {
+        return this.spongeVanillaVersions;
+    }
+
+    public String getSpongeVanillaVersion(String versionKey) {
+        return spongeVanillaVersions.get(versionKey);
+    }
+
+    public ServerVersionContainer setSpongeVanillaVersion(Map<String, String> newVersions) {
+        this.spongeVanillaVersions = newVersions;
+        return this;
+    }
+
+    public ServerVersionContainer setSpongeVanillaVersion(String mapKey, String newValue) {
+        spongeVanillaVersions.put(mapKey, newValue);
+        return this;
+    }
+
+}
+