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.