Handle deleting groups more consistently.

Delete the entries and child groups in Group dtor
no what if the group has a database or not.

src/core/Group.cpp

@@ -40,7 +40,6 @@ Group::~Group()
     this->blockSignals(true);
     // Destroy entries and children manually so DeletedObjects can be added
     // to database.
-    if (m_db && m_parent) {
     QList<Entry*> entries = m_entries;
     Q_FOREACH (Entry* entry, entries) {
         entry->blockSignals(true);
@@ -53,6 +52,7 @@ Group::~Group()
         delete group;
     }
 
+    if (m_db && m_parent) {
         DeletedObject delGroup;
         delGroup.deletionTime = Tools::currentDateTimeUtc();
         delGroup.uuid = m_uuid;