bump to v0.2.2

Author: kyeah

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mongodb"
-version = "0.2.1"
+version = "0.2.2"
 authors = ["Kevin Yeh <[email protected]>",
            "Saghm Rossi <[email protected]>",
            "Valeri Karpov <[email protected]>"]

README.md

@@ -22,16 +22,16 @@ The driver is available on crates.io. To use the MongoDB driver in your code, ad
 
 ```
 [dependencies]
-bson = "0.3.2"
-mongodb = "0.2.0"
+bson = "0.4.1"
+mongodb = "0.2.2"
 ```
 
 Alternately, you can use the MongoDB driver with SSL support. To do this, you must have OpenSSL installed on your system. Then, enable the `ssl` feature for MongoDB in your Cargo.toml:
 
 ```
 [dependencies]
 ...
-mongodb = { version = "0.2.0", features = ["ssl"] }
+mongodb = { version = "0.2.2", features = ["ssl"] }
 ```
 
 Then, import the bson and driver libraries within your code.