Queue download if update asked per ID

The version of the update function is chosen depending on the URI that is passed to the update method of the repo module:

• An ID URI: the ___worker_update_from_ids is selected, the user will be able to queue the different kara to download by calling again the update method with others ID URI
• Anything else: the ___worker_update is selected. It will download all the database from Kurisu, filtering if the passed URI is not URI_NULL.

The aim here is to offer a download process option which permit the user of doing a simple dry-update and then selecting the different karas he wants to download id per id.

Will close #102 (closed) for now.

Also close some TODOs.

src/base/uri.c

@@ -223,24 +223,29 @@ lkt_uri_free(struct lkt_uri *ret)
 struct lkt_uri *
 lkt_uri_copy(const struct lkt_uri *src)
 {
-    struct lkt_uri *ret = LKT_ALLOC_STRUCT(lkt_uri);
-    memset(ret, 0, sizeof(struct lkt_uri));
+    struct lkt_uri *ret = lkt_uri_new();
+
+    /* NULL Check */
+    if (lkt_uri_get_type(src) == URI_NULL)
+        return ret;
 
+    /* First, shallow copy */
     if (src != NULL)
         memcpy(ret, src, sizeof(struct lkt_uri));
 
-    /* A string was allocated for the URI */
-    if (!ret->is_int) {
-        ret->value      = (void *)strdup((const void *)src->value);
-        ret->_allocated = true;
-    }
+    /* Second, deep copy */
+    {
+        if (!ret->is_int) {
+            ret->value      = (void *)strdup((const void *)src->value);
+            ret->_allocated = true;
+        }
 
-    /* An integer was allocated for the URI */
-    else if (ret->_allocated) {
-        ret->value              = LKT_ALLOC(size_t);
-        *((size_t *)ret->value) = *((size_t *)src->value);
-        LOG_WARN("URI", "The allocated integer URIs are deprecated, "
-                        "you shouldn't be using them");
+        else if (ret->_allocated) {
+            ret->value              = LKT_ALLOC(size_t);
+            *((size_t *)ret->value) = *((size_t *)src->value);
+            LOG_WARN("URI", "The allocated integer URIs are deprecated, "
+                            "you shouldn't be using them");
+        }
     }
 
     return ret;