Document :force option to create_table. References #2921.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3075 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

 *SVN*
 
+* Document :force option to create_table.  #2921 [Blair Zajac <blair@orcaware.com>]
+
 * Don't add the same conditions twice in has_one finder sql.  #2916 [Jeremy Evans]
 
 * Rename Version constant to VERSION. #2802 [Marcel Molina Jr.]

activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb

@@ -43,6 +43,9 @@ def columns(table_name, name = nil) end
       #   Any extra options you want appended to the table definition.
       # [<tt>:temporary</tt>]
       #   Make a temporary table.
+      # [<tt>:force</tt>]
+      #   Set to true or false to drop the table before creating it.
+      #   Defaults to false.
       #
       # ===== Examples
       # ====== Add a backend specific option to the generated SQL (MySQL)