Update semver definitions to 4.3.4

- Add missing semver functions: major(), minor(), patch(), diff()
- Add tests for those new functions
- Add semver var to allow using it easily with Angular

semver/semver-tests.ts

@@ -4,6 +4,7 @@ var obj:Object;
 var bool:boolean;
 var num:number;
 var str:string;
+var diff:string;
 var x:any = null;
 var arr:any[];
 var exp:RegExp;
@@ -21,6 +22,9 @@ str = mod.valid(str);
 
 str = mod.valid(str, loose);
 str = mod.inc(str, str, loose);
+num = mod.major(str, loose);
+num = mod.minor(str, loose);
+num = mod.patch(str, loose);
 
 // Comparison
 bool = mod.gt(v1, v2, loose);
@@ -32,6 +36,7 @@ bool = mod.neq(v1, v2, loose);
 bool = mod.cmp(v1, x, v2, loose);
 num = mod.compare(v1, v2, loose);
 num = mod.rcompare(v1, v2, loose);
+diff = mod.diff(v1, v2, loose);
 
 // Ranges
 str = mod.validRange(str, loose);

semver/semver.d.ts

@@ -1,7 +1,9 @@
-// Type definitions for semver v2.2.1
-// Project: https://github.com/isaacs/node-semver
-// Definitions by: Bart van der Schoor <https://github.com/Bartvds>
-// Definitions: https://github.com/borisyankov/DefinitelyTyped
+// Type definitions for semver v4.3.4
+// Project: https://github.com/npm/node-semver
+// Definitions by: Bart van der Schoor <https://github.com/Bartvds> and Julien Paroche <https://github.com/julienpa>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/semver
+
+declare var semver: SemVerModule.SemVer;
 
 declare module SemVerModule {
     /**
@@ -12,6 +14,18 @@ declare module SemVerModule {
      * Return the version incremented by the release type (major, minor, patch, or prerelease), or null if it's not valid.
      */
     function inc(v: string, release: string, loose?: boolean): string;
+    /**
+     * Return the major version number.
+     */
+    function major(v: string, loose?: boolean): number;
+    /**
+     * Return the minor version number.
+     */
+    function minor(v: string, loose?: boolean): number;
+    /**
+     * Return the patch version number.
+     */
+    function patch(v: string, loose?: boolean): number;
 
     // Comparison
     /**
@@ -50,6 +64,10 @@ declare module SemVerModule {
      * The reverse of compare. Sorts an array of versions in descending order when passed to Array.sort().
      */
     function rcompare(v1: string, v2: string, loose?: boolean): number;
+    /**
+     * Returns difference between two versions by the release type (major, premajor, minor, preminor, patch, prepatch, or prerelease), or null if the versions are the same.
+     */
+    function diff(v1: string, v2: string, loose?: boolean): string;
 
     // Ranges
     /**