added distribution in the glossary

Author: fabpot

glossary.rst

@@ -6,6 +6,11 @@ Glossary
 .. glossary::
    :sorted:
 
+   Distribution
+        A *Distribution* is a package made of the Symfony2 Components, a
+        selection of bundles, a sensible directory structure, a default
+        configuration, and an optional configuration system.
+
    Project
         A *Project* is a directory composed of an Application, a set of
         bundles, vendor libraries, an autoloader, and web front controller