Added readme

README.md

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+# ant-dependency-viewer
+
+## Introduction
+
+ant-dependency-viewer is a Python script that visualizes the dependency graph of an Ant buildfile.
+
+## Dependencies
+
+1. Python 2.7
+2. graphviz
+3. Python graphviz package (```pip install graphviz```)
+
+## Usage
+
+```./ant-dependency-viewer.py -f BUILDFILE``` will print a textual
+representation of your Ant buildfile to stdout.  If you would like a
+graphical representation rendered with graphviz, use add the ```-t```
+argument to specify the output format: ```./ant-dependency-viewer.py
+-f BUILDFILE -t FORMAT```.  ```FORMAT``` can be one of ```pdf```,
+```ps```, ```svg```, ```fig```, ```pcl```, ```png```, ```gif```, or
+```dia```.  This will produce two files in the same directory as the
+buildfile, the ```dot``` source and the rendered view of the
+dependency graph.