orderbuild fixes; tranche table work; ordershapes still broken

src/charts/datafeed.js

@@ -222,7 +222,17 @@ function getAllSymbols() {
 }
 
 export function lookupSymbol(key) { // lookup by ticker which is "0xbaseAddress/0xquoteAddress"
-	return getAllSymbols()[key]
+	const symbols = getAllSymbols();
+	if (!(key in symbols)) {
+		// check the inverted symbol
+		const [base,quote] = key.split('/')
+		key = quote+'/'+base
+		if (!(key in symbols)) {
+			console.error('no symbol found for key', key, symbols)
+			return null
+		}
+	}
+	return symbols[key]
 }
 
 function checkBar(bar, msg) {