Removed outdated dev docs.

These things are completey out of date and simply confuse people.
We ned to come up with a better organization of our dev docs, but
that is a bigger project.

docs/source/development/index.txt

@@ -13,14 +13,8 IPython developer's guide
    doc_guide.txt
    testing.txt
    release.txt
-   roadmap.txt
    reorg.txt
    messaging.txt
    parallel_messages.txt
    parallel_connections.txt
-   magic_blueprint.txt
-   ipgraph.txt
-   ipython_qt.txt
-   ipythonzmq.txt
-   notebook_todo.txt
    ipython_directive.txt