better package description (from readme)

package.xml

@@ -3,7 +3,20 @@
  <name>uopz</name>
  <channel>pecl.php.net</channel>
  <summary>User Operations for Zend</summary>
- <description>Doing things you probably shouldn't since 2014</description>
+ <description>
+The uopz extension is focused on providing utilities to aid with unit testing PHP code.
+
+It supports the following activities:
+
+* Intercepting function execution
+* Intercepting object creation
+* Hooking into function execution
+* Manipulation of function statics
+* Manipulation of function flags
+* Redefinition of constants
+* Deletion of constants
+* Runtime creation of functions and methods
+</description>
  <lead>
   <name>Joe Watkins</name>
   <user>krakjoe</user>