Made some more important methods public

Author: jamezrin

src/main/java/me/jaimemartz/lobbybalancer/section/SectionManager.java

@@ -93,7 +93,7 @@ public ServerSection getByServer(ServerInfo server) {
     }
 
     public Map<String, ServerSection> getSections() {
-        return Collections.unmodifiableMap(sectionStorage);
+        return sectionStorage;
     }
 
     public ServerSection getPrincipal() {

src/main/java/me/jaimemartz/lobbybalancer/section/ServerSection.java

@@ -273,7 +273,7 @@ public boolean isValid() {
         return valid;
     }
 
-    void setValid(boolean valid) {
+    public void setValid(boolean valid) {
         this.valid = valid;
     }
 }