Prepare for release 0.2.1.

CHANGES

@@ -3,6 +3,10 @@ User visible changes for btcwallet
   A wallet daemon for btcd, written in Go
 ============================================================================
 
+Changes in 0.2.1 (Thu Jan 10 2014)
+  - Fix a mutex isssue which caused btcwallet to lockup on all
+    RPC requests needing to read or write an account
+
 Changes in 0.2.0 (Thu Jan 09 2014)
   - Enable mainnet support (disabled by default, use --mainnet to enable)
 

version.go

@@ -30,7 +30,7 @@ const semanticAlphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr
 const (
 	appMajor uint = 0
 	appMinor uint = 2
-	appPatch uint = 0
+	appPatch uint = 1
 
 	// appPreRelease MUST only contain characters from semanticAlphabet
 	// per the semantic versioning spec.