move search-default plugin to core
update /util/image-gallery/misc/plugin/recent_image.rb...fix bug on generating new cache data.
Merge branch 'fix_tdiarymonth_bug'
ignore version of core gem
Merge pull request #79 from tdiary/ignore_core_version

ignore version of core gem
makerss_*.rb: fit interface with makerss.rb
catch up new bing api #38
workaround: mysterious error at 1st access to the API
add new plugin coderay.rb
use jQuery to set elem properly.  Otherwise, a JavaScript error occurs when clicking the "Add to body" button.
support image_size gem.
add new plugin nhk_program_info.rb
Fix a missing 'return` for API Error..
Display credit as item by API rule.
remove support of iddy.jp because the service EOL

* see: http://iddy.jp/blog/log/2014/02/000089.php
* replace Iddy class to dummy
* fallback to twitter when :iddy specified as service
Merge pull request #80 from tdiary/remove_iddy

remove support of iddy.jp because the service EOL
upgrade to rspec3
used expect syntax
Merge pull request #82 from tdiary/rspec3

RSpec 3 対応
bump version to 4.0.3