BabelFish: fixup BabelFish plugin using the google translate

 * change icon
 * $default_babelfish_translation option added (default: ko,en)
new babel fish icon
replace deprecated call_user_method with call_user_func
ACL plugin: check login user
Login plugin: fix for css styling
remove some styling from the base css
fixup <<macro>> syntax to support macro aliases
Vote plugin: i18nize + css styling
i18nize and css styling css/theme plugin
Cache cleaner: cleanup more caches
fixup store_pagelinks() correctly.

remove duplicated backlink entries
fixup pagelist macro

currently sorting pages by date is not supported
PageList plugin: paginate the pagelist plugin
add a missing $pages_limit option and fixup the option name of the $use_jsbuttons
fixup typo
update po message files
update icons
RecentChanges: diffwidth option added
RecentChanges: fixup for css styling
SectionFolding: dynamic section folding