Added Undo close tab repository (#6436)

* Added Undo close tab repository

* Moved from Branch-based release to tag based release
changed  default keymap

repository/u.json

@@ -140,6 +140,18 @@
 				}
 			]
 		},
+		{
+			"name": "Undo Close Tab",
+			"details": "https://github.com/scriptburn/sublimetext-undoclosetabs",
+			"author": "Rajneesh kumar ojha",
+			"labels": ["undo","tab"],
+			"releases": [
+				{
+					"sublime_text": "*",
+					"tags": true
+				}
+			]
+		},
 		{
 			"name": "Unicode Character Highlighter",
 			"details": "https://github.com/possan/sublime_unicode_nbsp",