Delete unimplemented constants
Checking in changes prior to tagging version "0.1.2".

Changelog diff:

diff --git a/History.md b/History.md
index 1b19407..b398fb2 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,11 @@
 # Revision history for unqlite

+0.1.2 / 2014-05-05
+==================
+
+  * Delete unimplemented constants
+  * Improved document
+
 0.1.1 / 2014-04-30
 ==================