stockpile 2.0

Stockpile is a simple key-value store connection manager framework. Stockpile itself does not implement a connection manager, but places expectations for implemented connection managers. So far, only Redis has been implemented (stockpile-redis). Stockpile also provides an adapter so that its functionality can be accessed from within a module. Release 2.0 fixes an issue when Stockpile options are provided with an OpenStruct, originally reported as {stockpile-redis#1}[https://github.com/halostatue/stockpile-redis/issues/1]. Support for Ruby 1.9 has been dropped.