Prepare v0.1.0 release

Author: clue

CHANGELOG.md

@@ -4,6 +4,7 @@ This file is a manually maintained list of changes for each release. Feel free
 to add your changes here when sending pull requests. Also send corrections if
 you spot any mistakes.
 
-## 0.1.0 (2014-xx-xx)
+## 0.1.0 (2014-12-31)
 
-*   First tagged release
+*   First tagged release, split off from [clue/graph](https://github.com/clue/graph) v0.8.0
+    ([#1](https://github.com/graphp/graphviz/issues/1))

README.md

@@ -38,7 +38,7 @@ The recommended way to install this library is [through composer](http://getcomp
 ```JSON
 {
     "require": {
-        "graphp/graphviz": "dev-master"
+        "graphp/graphviz": "~0.1.0"
     }
 }
 ```