Release Name: 0.9.1

Notes:
Updated README and other docs. See 0.9.0 changelog for features. 


Changes:
0.9.0 features:

2009-04-17  blythedunham  <blythedunham@gmail.com>
* Added MySQL support for save, create, replace options - :ignore, :on_duplicate_key_update, :keywords, :reload, :keywords, :pre_sql, :post_sql
* Added MySQL support for find options: :keywords, :pre_sql, :post_sql, :index_hint
* Added MySQL support for find_union and count_union
* Added MySQL support for insert_select
* Added MySQL support for delete_duplicates and delete_all :batch_size => X
* Updated :on_duplicate_update_key to accept a string in addition to array
* Fixed Find Extension Range bug to exclude end when ... used instead of ..