Alias attr_encrypted in AR adapter.
Version bump.
Fixes #118 Documentation database columns required for "per attribute IV and salt" encryption mode
Evaluate proc for conditional per attribute salt and iv
Test setting :mode with proc
Creds added
Add .bundle and .ruby-version to ignore file
Fixes #68 Overload ActiveRecord::Base.reload to invalidate all encrypted virtual attributes

* Extends ActiveRecord::Base.reload via alias_method_chain to invalidate all of attr_encrypted's virtual attributes
* Adds test case