encode keys to datastore with base32 standard encoding

Fixes ipfs#2601

Also bump version to 0.4.3-dev

License: MIT
Signed-off-by: Jeromy <why@ipfs.io>

config/version.go

@@ -4,6 +4,6 @@ package config
 var CurrentCommit string
 
 // CurrentVersionNumber is the current application's version literal
-const CurrentVersionNumber = "0.4.2"
+const CurrentVersionNumber = "0.4.3-dev"
 
 const ApiVersion = "/go-ipfs/" + CurrentVersionNumber + "/"