tree printer CHANGE new tree-rfc format and some other options added

Added option for not printing leafref targets, not resolving uses
groupings and print uses instead, printing only subtree, and
limiting line length. New test of this also added.
diff --git a/src/parser_yang.c b/src/parser_yang.c
index 6b6fc88..b67234b 100644
--- a/src/parser_yang.c
+++ b/src/parser_yang.c
@@ -620,7 +620,7 @@
     int rc, ret = -1;
     unsigned int i, j;
     int8_t req;
-    const char *name, *value;
+    const char *name, *value, *module_name = NULL;
     LY_DATA_TYPE base = 0, base_tmp;
     struct lys_node *siter;
     struct lys_type *dertype;
@@ -643,29 +643,33 @@
     /* module name */
     name = value;
     if (value[i]) {
-        type->module_name = lydict_insert(module->ctx, value, i);
+        module_name = lydict_insert(module->ctx, value, i);
         name += i;
         if ((name[0] != ':') || (parse_identifier(name + 1) < 1)) {
             LOGVAL(LYE_INCHAR, LY_VLOG_NONE, NULL, name[0], name);
+            lydict_remove(module->ctx, module_name);
             lydict_remove(module->ctx, value);
             goto error;
         }
         ++name;
     }
 
-    rc = resolve_superior_type(name, type->module_name, module, parent, &type->der);
+    rc = resolve_superior_type(name, module_name, module, parent, &type->der);
     if (rc == -1) {
-        LOGVAL(LYE_INMOD, LY_VLOG_NONE, NULL, type->module_name);
+        LOGVAL(LYE_INMOD, LY_VLOG_NONE, NULL, module_name);
+        lydict_remove(module->ctx, module_name);
         lydict_remove(module->ctx, value);
         goto error;
 
     /* the type could not be resolved or it was resolved to an unresolved typedef or leafref */
     } else if (rc == EXIT_FAILURE) {
         LOGVAL(LYE_NORESOLV, LY_VLOG_NONE, NULL, "type", name);
+        lydict_remove(module->ctx, module_name);
         lydict_remove(module->ctx, value);
         ret = EXIT_FAILURE;
         goto error;
     }
+    lydict_remove(module->ctx, module_name);
     lydict_remove(module->ctx, value);
 
     if (type->base == LY_TYPE_ERR) {
@@ -1009,10 +1013,6 @@
     return EXIT_SUCCESS;
 
 error:
-    if (type->module_name) {
-        lydict_remove(module->ctx, type->module_name);
-        type->module_name = NULL;
-    }
     if (base) {
         type->base = base_tmp;
     }