can't login with basic auth

[debu99]

when username include special character like dot(.), the logs show error

2020-04-19 00:57:33,619 	 INFO 	 elastichq 	 ConnectionService.create_connection:61 	 Cert File: None
2020-04-19 00:57:33,620 	 INFO 	 elastichq 	 ConnectionService.create_connection:76 	 Basic Auth is True
2020-04-19 00:57:33,620 	 INFO 	 elastichq 	 ConnectionService.create_connection:89 	 SSL disabled
2020-04-19 00:57:33,679 	 ERROR 	 elastichq 	 ConnectionService.create_connection:165 	 ('Unable to create connection! Server returned 401 - UNAUTHORIZED: http://10.104.5.2:9200', 401)
None
None
2020-04-19 00:59:52,658 	 INFO 	 elastichq 	 ConnectionService.create_connection:60 	 Verify: True
2020-04-19 00:59:52,661 	 INFO 	 elastichq 	 ConnectionService.create_connection:61 	 Cert File: None
2020-04-19 00:59:52,661 	 INFO 	 elastichq 	 ConnectionService.create_connection:76 	 Basic Auth is True
2020-04-19 00:59:52,661 	 INFO 	 elastichq 	 ConnectionService.create_connection:89 	 SSL disabled
2020-04-19 00:59:52,728 	 ERROR 	 elastichq 	 ConnectionService.create_connection:165 	 ('Unable to create connection! Server returned 401 - UNAUTHORIZED: http://10.104.5.2:9200', 401)```

[amit10may]

Same issue here. Chars like @ and ! create issue with URL validation

[akshaynarula]

@royrusso