[svn] Fully generalize new dynamic add new reference pane generation for Citation (ina addition to Cite). Fix bugs (such as no start pane, duplicate panes piling up and remaining undefined descriptions). Trivial i18n through LANG, change sorter code to use array (for better maintenence at minor performance cost). Add a little more null error checking, such as in clearAddCitation. Add "type" for Citation object, which is currently used only to determine default parameters, as Citation tags don't really have a fixed type. Simplify Citation types to use e.g. web instead of webc. This shouldn't pose a problem, as the two citation types should never coexist in the DOM.