added a new dec:55 (toho ura) to board list
code cleanup for load context of channels which akahuku creates
fixed extension recognition for redirected autolinks
removed unnecessary version checks for Fx36
supported asynchronous history API in catalog mode for probable changes in Fx21
Use lazy initialization for arAkahukuCompat.AsyncHistory

Firefox 3.6 throws NS_ERROR_XPC_GS_RETURNED_FAILURE at startup.
Support asynchronous history API for autolinks
Support asynchronous history API in sidebar
Remove arAkahukuHistory
Cache results of platform version comparisons
Fix a mistaken version logic by the last commit
Make lazy instantiations of nsIURI appropriate
Fix targetDocument is undefined
Add arakahuku-thread-unload notification
Add URI-specific methods to get document param
Add a feature: mark opened threads in catalog mode
Fix invalid relative path handling in d1dd9bc
Enable catalog save-state setting for any order

(no sort-order restriction since catalog-mode improvements in sp62403)
Tolerate Zenkaku in "No." quotations for popup
Remove arAkahukuCatalogCacheWriter unused now