Merge branch 'master' of https://github.com/Leaflet/Leaflet

* 'master' of https://github.com/Leaflet/Leaflet:
  Add test specifications for CRS classes.
  Fixing wrong EPGS3395 transformation
  Renamed Tooltip to Title
  Again some whitespace removing. (Travis)
  Code style adjusted for travis.
  Localization Support for Zoom Control

spec/suites/SpecHelper.js

@@ -23,4 +23,20 @@ if (!Array.prototype.map) {
 
     return res;
   };
-}
+}
+
+expect.Assertion.prototype.near = function(expected, delta) {
+    delta = delta || 1;
+    expect(this.obj.x).to
+        .be.within(expected.x - delta, expected.x + delta);
+    expect(this.obj.y).to
+        .be.within(expected.y - delta, expected.y + delta);
+};
+
+expect.Assertion.prototype.nearLatLng = function(expected, delta) {
+    delta = delta || 1e-4;
+    expect(this.obj.lat).to
+        .be.within(expected.lat - delta, expected.lat + delta);
+    expect(this.obj.lng).to
+        .be.within(expected.lng - delta, expected.lng + delta);
+};

spec/suites/geo/CRSSpec.js

@@ -0,0 +1,47 @@
+describe("CRS.EPSG3395", function() {
+	var crs = L.CRS.EPSG3395;
+
+	describe("#latLngToPoint", function() {
+		it("projects a center point", function() {
+			expect(crs.latLngToPoint(L.latLng(0, 0), 0)).near(new L.Point(128, 128), 0.01);
+		})
+
+		it("projects the northeast corner of the world", function() {
+			expect(crs.latLngToPoint(L.latLng(85.0840591556, 180), 0)).near(new L.Point(256, 0));
+		});
+	});
+
+	describe("#pointToLatLng", function() {
+		it("reprojects a center point", function() {
+			expect(crs.pointToLatLng(new L.Point(128, 128), 0)).nearLatLng(L.latLng(0, 0), 0.01);
+		})
+
+		it("reprojects the northeast corner of the world", function() {
+			expect(crs.pointToLatLng(new L.Point(256, 0), 0)).nearLatLng(L.latLng(85.0840591556, 180));
+		});
+	});
+});
+
+describe("CRS.EPSG3857", function() {
+	var crs = L.CRS.EPSG3857;
+
+	describe("#latLngToPoint", function() {
+		it("projects a center point", function() {
+			expect(crs.latLngToPoint(L.latLng(0, 0), 0)).near(new L.Point(128, 128), 0.01);
+		})
+
+		it("projects the northeast corner of the world", function() {
+			expect(crs.latLngToPoint(L.latLng(85.0511287798, 180), 0)).near(new L.Point(256, 0));
+		});
+	});
+
+	describe("#pointToLatLng", function() {
+		it("reprojects a center point", function() {
+			expect(crs.pointToLatLng(new L.Point(128, 128), 0)).nearLatLng(L.latLng(0, 0), 0.01);
+		})
+
+		it("reprojects the northeast corner of the world", function() {
+			expect(crs.pointToLatLng(new L.Point(256, 0), 0)).nearLatLng(L.latLng(85.0511287798, 180));
+		});
+	});
+});

spec/suites/geo/ProjectionSpec.js

@@ -1,14 +1,6 @@
 describe("Projection.Mercator", function() {
 	var p = L.Projection.Mercator;
 
-	expect.Assertion.prototype.near = function(expected, delta) {
-		delta = delta || 1;
-		expect(this.obj.x).to
-			.be.within(expected.x - delta, expected.x + delta);
-		expect(this.obj.y).to
-			.be.within(expected.y - delta, expected.y + delta);
-	};
-
 	describe("#project", function() {
 		it("projects a center point", function() {
 			//edge cases

src/control/Control.Zoom.js

@@ -4,7 +4,11 @@
 
 L.Control.Zoom = L.Control.extend({
 	options: {
-		position: 'topleft'
+		position: 'topleft',
+		zoomInText: '+',
+		zoomInTitle: 'Zoom in',
+		zoomOutText: '-',
+		zoomOutTitle: 'Zoom out'
 	},
 
 	onAdd: function (map) {
@@ -14,9 +18,11 @@ L.Control.Zoom = L.Control.extend({
 		this._map = map;
 
 		this._zoomInButton  = this._createButton(
-		        '+', 'Zoom in',  zoomName + '-in',  container, this._zoomIn,  this);
+		        this.options.zoomInText, this.options.zoomInTitle,
+		        zoomName + '-in',  container, this._zoomIn,  this);
 		this._zoomOutButton = this._createButton(
-		        '-', 'Zoom out', zoomName + '-out', container, this._zoomOut, this);
+		        this.options.zoomOutText, this.options.zoomOutTitle,
+		        zoomName + '-out', container, this._zoomOut, this);
 
 		map.on('zoomend zoomlevelschange', this._updateDisabled, this);
 

src/geo/crs/CRS.EPSG3395.js

@@ -7,8 +7,8 @@ L.CRS.EPSG3395 = L.extend({}, L.CRS, {
 	transformation: (function () {
 		var m = L.Projection.Mercator,
 		    r = m.R_MAJOR,
-		    r2 = m.R_MINOR;
+		    scale = 0.5 / (Math.PI * r);
 
-		return new L.Transformation(0.5 / (Math.PI * r), 0.5, -0.5 / (Math.PI * r2), 0.5);
+		return new L.Transformation(scale, 0.5, -scale, 0.5);
 	}())
 });