Drop parseVarWithoutAssignment

Additionally sorts gitignore and adds attempted decoding of lists back
to the REPL

test/Spec.hs

@@ -53,7 +53,7 @@ lexerTests = testGroup "Lexer Tests"
           expect = Right [LKeywordT, LStringLiteral "string", LIntegerLiteral 42]
       runParser tricuLexer "" input @?= expect
   , testCase "Lex invalid token" $ do
-      let input = "$invalid"
+      let input = "&invalid"
       case runParser tricuLexer "" input of
         Left _ -> return ()
         Right _ -> assertFailure "Expected lexer to fail on invalid token"