Replace separate start/end date option with usual timerange option

tests/data/test_entryexitanalysis.py

@@ -191,10 +191,8 @@ def test_backtest_analysis_nomock(default_conf, mocker, caplog, testdatadir, tmp
     assert '2.5' in captured.out
 
     # test date filtering
-    args = get_args(base_args +
-                    ['--analysis-date-start', "20180129",
-                     '--analysis-date-end', "20180130"]
-                    )
+    args = get_args(base_args + ['--timerange', "20180129-20180130"])
     start_analysis_entries_exits(args)
     captured = capsys.readouterr()
+    assert 'enter_tag_long_a' in captured.out
     assert 'enter_tag_long_b' not in captured.out