skeleton journal functionality --- catch-all view

all this does at the moment is echoes the path from the request back in
the response, but it's the super basic plumbing I can write at the
moment

incorporealcms/__init__.py

@@ -18,4 +18,7 @@ def create_app(test_config=None):
     else:
         app.config.from_mapping(test_config)
 
+    from . import journal
+    app.register_blueprint(journal.bp)
+
     return app

incorporealcms/journal.py

@@ -0,0 +1,10 @@
+"""Journal functionality."""
+from flask import Blueprint
+
+bp = Blueprint('journal_views', __name__, url_prefix='/')
+
+
+@bp.route('/', defaults={'path': 'INDEX'})
+@bp.route('/<path:path>')
+def display_journal_entry(path):
+    return path