update bootstrap instructions.
Checking in changes prior to tagging of version 0.06.

Changelog diff is:

diff --git a/Changes b/Changes
index e3fe90f..763e99d 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,9 @@
 Revision history for Perl extension Plack::App::PgREST

+0.06 Wed Apr 24 13:29:42 CST 2013
+        - use plv8x-based pgrest
+
 0.05  Tue Feb  5 20:31:49 CST 2013
         - postgres 9.0 compatibility