Checking in changes prior to tagging of version 0.15.

Changelog diff is:

diff --git a/Changes b/Changes
index 45fc874..e3a8849 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,10 @@
 Revision history for Perl extension Plack::Middleware::Profiler::NYTProf

+0.15 Tue May 6 21:00 2014
+    * Load Devel::NYTProf in prepare_app phase to support fork
+    * Support only Devel::NYTProf 5.06 or higher
+    Thanks to bayashi
+
 0.14 Sun Feb 10 20:46:00 2013
     * Set nytprofhtml script path in prepare_app