Checking in changes prior to tagging version "0.2.1".

Changelog diff:

diff --git a/History.md b/History.md
index 25c0fe3..d1fda0b 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,10 @@
 # Revision history for unqlite

+0.2.1 / 2014-05-06
+==================
+
+  * Support Node.js v0.11.13(V8 3.25))
+
 0.2.0 / 2014-05-05
 ==================