New phpdoc config file

Author: jeffswartz

.gitignore

@@ -7,3 +7,6 @@ phpunit.xml
 sample/*/vendor/
 sample/*/cache/
 composer.lock
+
+docs/
+.phpdoc/

DEVELOPING.md

@@ -20,6 +20,10 @@ This project's tests are written as PHPUnit test cases. Common tasks:
 
 *  `./vendor/bin/phing test` - run the test suite.
 
+### Building docs
+
+Install [PhpDocumentor](https://docs.phpdoc.org/). Then run `php phpDocumentor.phar --config phpdoc.dist.xml`.
+
 ### Releasing
 
 In order to create a release, the following should be completed in order.

phpdoc.dist.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<phpdocumentor
+        configVersion="3"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xmlns="https://www.phpdoc.org"
+        xsi:noNamespaceSchemaLocation="https://docs.phpdoc.org/latest/phpdoc.xsd"
+>
+    <paths>
+        <output>docs</output>
+    </paths>
+    <version number="latest">
+        <api>
+            <source dsn=".">
+                <path>src</path>
+            </source>
+            <ignore hidden="true" symlinks="true">
+              <path>src/OpenTok/Util</path>
+            </ignore>
+        </api>
+    </version>
+</phpdocumentor>