Release Name: 1.0.9

Notes:
rroonga is a extension library to use groonga's DB-API
layer. rroonga provides Rubyish readable and writable
API. You can use groonga's first and highly functional
features from Ruby.


Changes:
=== Improvements

* Supported gem creation on Windows.
  [Patch by ongaeshi]
* Supported generated directory that is created by Groonga::Schema removal
  when table or column is removed.
* Added Groonga::Context#create_database.
* Added Groonga::Context#open_database.
* Added Groonga::Column#indexes.
* Supported a notation for specifying index column as match target in
  Groonga::Table#select:
    table.select do |record|
      record.match("query") do |match_record|
        (match_record.index("Terms.title") * 1000) |
          (match_record.index("Terms.description") * 100)
          match_record.content
      end
    end
* Supported prefix search in Groonga::Table#select:
    table.select do |record|
      record.name.prefix_search("groo")
    end
* Supported suffix search in Groonga::Table#select:
    table.select do |record|
      record.name.suffix_search("nga")
    end
* Supported :default_tokenizer schema dump.
* Supported :key_normalize schema dump.
* Supported pseudo columns by Groonga::Table#have_column?.
* Supported pseudo columns by Groonga::Record#have_column?.

=== Changes

* Renamed Groonga::Operatoion to Groonga::Operator.
  (Groonga::Operation is deprecated but still usable.)

=== Fixes

* Fixed a crash bug when not default Groonga::Context is used in
  Groonga::Table#select.
* Fixed a crash bug when an exception is occurred.

=== Thanks

* ongaeshio