* Changed the license in package json to the correct license (MIT).

* Changed the link style from the pointed one to a more triangle formed style as default style for links
* Updated the readme file regarding linkStyles to explain the magic number 3a s described in issue #41

README.md

@@ -234,7 +234,10 @@ A---|This is the text|B;
 ![Text on links](http://www.sveido.com/mermaid/img/ex11.png)
 
 ### Styling links
-It is possible to style links for instance a link that is going back in the flow. This is done by the linkStyle statement as in the example below:
+It is possible to style links, for instance you might want to style a link that is going backwards in the flow. As links
+has no ids in the same way as nodes, some other way of deciding what link the style should be attached to is required.
+Instead of ids the order number of when the link was defined in the graph is used. In the example below the style
+defined in the linkStyle statement will belong to the forth link in the graph:
 
 ```
 linkStyle 3 stroke:#ff3,stroke-width:4px;

dist/mermaid.full.js

@@ -13163,7 +13163,7 @@ exports.addEdges = function (edges, g) {
             aHead = 'none';
         }
         else{
-            aHead = 'vee';
+            aHead = 'normal';
         }
 
         var style = '';

dist/mermaid.slim.js

@@ -13131,7 +13131,7 @@ exports.addEdges = function (edges, g) {
             aHead = 'none';
         }
         else{
-            aHead = 'vee';
+            aHead = 'normal';
         }
 
         var style = '';

package.json

@@ -11,7 +11,7 @@
     "url": "https://github.com/knsv/mermaid"
   },
   "author": "",
-  "license": "BSD-2-Clause",
+  "license": "MIT",
   "dependencies": {
     "he": "^0.5.0",
     "dagre-d3": "~0.3.2"

src/main.js

@@ -103,7 +103,7 @@ exports.addEdges = function (edges, g) {
             aHead = 'none';
         }
         else{
-            aHead = 'vee';
+            aHead = 'normal';
         }
 
         var style = '';

src/main.spec.js

@@ -68,7 +68,7 @@ describe('when using main and ',function() {
                 setEdge:function(start, end,options,name){
                     expect(start).toBe('A');
                     expect(end).toBe('B');
-                    expect(options.arrowhead).toBe('vee');
+                    expect(options.arrowhead).toBe('normal');
                     expect(options.label.match('text ex')).toBeTruthy();
                 }
             };
@@ -85,7 +85,7 @@ describe('when using main and ',function() {
                 setEdge:function(start, end,options,name){
                     expect(start).toBe('A');
                     expect(end).toBe('B');
-                    expect(options.arrowhead).toBe('vee');
+                    expect(options.arrowhead).toBe('normal');
                 }
             };