Add an "Import match list" tab to the scouting web page

This patch adds a new tab to the scouting web page to import the match
list. You have to point the server at a config file with `--tba_config`.
See its `--help` for more information.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I606915a6cc5776fe183da41ab8b04b063f57dafd
diff --git a/scouting/webserver/main.go b/scouting/webserver/main.go
index 94e0222..282e248 100644
--- a/scouting/webserver/main.go
+++ b/scouting/webserver/main.go
@@ -45,7 +45,7 @@
 	blueAllianceConfigPtr := flag.String("tba_config", "",
 		"The path to your The Blue Alliance JSON config. "+
 			"It needs an \"api_key\" field with your TBA API key. "+
-			"Optionally, it can have a \"url\" field with the TBA API base URL.")
+			"Optionally, it can have a \"base_url\" field with the TBA API base URL.")
 	flag.Parse()
 
 	database, err := db.NewDatabase(*dbPathPtr)