Some updates in composer.json in order to respect semantic versioning

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

Author: phansys

composer.json

@@ -1,24 +1,31 @@
 {
-	"name":"vmwarephp/vmwarephp",
-	"type":"library",
-	"description":"Vmware vSphere bindings for PHP",
-	"keywords":["vmware", "php", "vsphere", "bindings", "vsphere sdk", "vmware php"],
-	"homepage":"https://github.com/vadimcomanescu/vmwarephp",
-	"license":"BSD-3-Clause",
-	"authors":[
-		{
-			"name":"Vadim Comanescu",
-			"email":"vadim984@gmail.com",
-			"homepage":"http://vadimcomanescu.wordpress.com"
-		}
-	],
-	"require":{
-		"php":">=5.3.2"
-	},
-	"require-dev":{
-		"mockery/mockery":"dev-master"
-	},
-        "autoload": {
-            "psr-0": { "Vmwarephp": "library" }
+    "name": "vmwarephp/vmwarephp",
+    "type": "library",
+    "description": "Vmware vSphere bindings for PHP",
+    "keywords": ["vmware", "php", "vsphere", "bindings", "vsphere sdk", "vmware php"],
+    "homepage": "https://github.com/vadimcomanescu/vmwarephp",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Vadim Comanescu",
+            "email": "vadim984@gmail.com",
+            "homepage": "http://vadimcomanescu.wordpress.com"
         }
+    ],
+    "require": {
+        "php": ">=5.3.2"
+    },
+    "require-dev": {
+        "mockery/mockery": "~1.0@dev"
+    },
+    "autoload": {
+        "psr-0": {
+            "Vmwarephp": "library"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "0.1-dev"
+        }
+    }
 }