Add versioning warning to README.
|@@ -13,6 +13,8 @@ LightMongo is best installed via `gem install light_mongo` and required as norma|
|It is dependent on the gem `mongo`, which is the MongoDB Ruby driver.|
|For performance reasons I would recommend also installing `mongo_ext`, the C extensions for the driver.|
|+__UPDATE__: Looks like Kyle Banker released a 1.0 of the Ruby Mongo driver. This is awesome stuff but unfortunately breaks a bunch of LightMongo. I can't guarantee any environment newer than `Ruby 1.8.6` and `mongo 0.19.1` for the moment.|
|Please see [LightMongo-Rails][lm_rails] for an ActionPack-compatible bridge.|