started converting to use optparse-applicative

This is a work in progress. It compiles and is able to do basic command
dispatch, including git autocorrection, while using optparse-applicative
for the core commandline parsing.

* Many commands are temporarily disabled before conversion.
* Options are not wired in yet.
* cmdnorepo actions don't work yet.

Also, removed the [Command] list, which was only used in one place.

Command/InitRemote.hs

@@ -19,10 +19,10 @@ import Logs.Trust
 
 import Data.Ord
 
-cmd :: [Command]
-cmd = [command "initremote"
+cmd :: Command
+cmd = command "initremote"
 	(paramPair paramName $ paramOptional $ paramRepeating paramKeyValue)
-	seek SectionSetup "creates a special (non-git) remote"]
+	seek SectionSetup "creates a special (non-git) remote"
 
 seek :: CommandSeek
 seek = withWords start