Publish version 0.2.0, add changelog

Author: thijsc

CHANGELOG.md

@@ -0,0 +1,7 @@
+# 0.2.0
+* Refactored API, less namespaces than before.
+* Upgrade Mongo C driver to 1.3.1
+* Now dual licensed as both Apache and MIT
+
+# 0.1.0
+* Initial release

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name        = "mongo_driver"
-version     = "0.1.0"
+version     = "0.2.0"
 authors     = ["Thijs Cadier <[email protected]>"]
 description = "Mongo Rust driver built on top of the Mongo C driver"
 readme      = "README.md"
@@ -21,4 +21,4 @@ path    = "mongoc-sys"
 version = "1.3.1"
 
 [dev-dependencies]
-chrono = "*"
+chrono = "> 0.2.0"