Fix zooming bugs (changing with the selector puts zoom back to its initial value; fitting to Width doesn't change the zoom ratio estimate)

js/Toolbar/Zoom.js

@@ -27,6 +27,7 @@ function scaleTo(geometry) {
 			GUI.page.style.width = '100%';
 			ratio = GUI.page.clientWidth / geometry.width;
 			scale(GUI.page, geometry, 'height');
+			GUI.zoomAmount.value = 10 * Math.round(10 * ratio / initialRatio);
 			break;
 		case 'fitHeight':
 			GUI.page.style.height = '100%';

js/View.js

@@ -13,7 +13,7 @@ GUI.loadScoria.addEventListener('click', importScoria);
 GUI.saveScoria.addEventListener('click', exportScoria);
 
 GUI.fitWidth.addEventListener('click', scale({fitWidth: true}));
-GUI.zoomAmount.addEventListener('change', scale({zoom: GUI.zoomAmount.value}));
+GUI.zoomAmount.addEventListener('change', scale(function(x) {return x;}));
 GUI.fitHeight.addEventListener('click', scale({fitHeight: true}));
 Keys.bind('w', scale({fitWidth: true}));
 Keys.bind('h', scale({fitHeight: true}));