Migrate protect log to new log system
This localize the protect type, level and expiry on Special:Log/protect.
To allow i18n there are some details stored in the log params of new log
items, these details also shown on API output.
The details cannot get from the old existing data, because there are
containing L10n strings therefore i18n works only for new items.
In the api and for IRC the old description text is still stored in the
log params for backward compatibility.
This allows use of gender on Special:Log. Old messages are kept for use
in IRC. Tests already exists to ensure an unchanged IRC message.