Add ability to update an Egg by re-uploading a file.

resources/lang/en/admin/nests.php

@@ -16,6 +16,7 @@ return [
     'eggs' => [
         'notices' => [
             'imported' => 'Successfully imported this Egg and its associated variables.',
+            'updated_via_import' => 'This Egg has been updated using the file provided.',
             'deleted' => 'Successfully deleted the requested egg from the Panel.',
             'updated' => 'Egg configuration has been updated successfully.',
             'script_updated' => 'Egg install script has been updated and will run whenever servers are installed.',

resources/lang/en/exceptions.php

@@ -31,6 +31,7 @@ return [
             'reserved_name' => 'The environment variable :name is protected and cannot be assigned to a variable.',
         ],
         'importer' => [
+            'json_error' => 'There was an error while attempting to parse the JSON file: :error.',
             'file_error' => 'The JSON file provided was not valid.',
             'invalid_json_provided' => 'The JSON file provided is not in a format that can be recognized.',
         ],