[preedit_blacklist] naming changes; cache regex_t's; etc
[dbus] can use org.fcitx.Fcitx to activate.
[dbus] fix name request
[misc] install most file based on prefix by default
[preedit_blacklist] use FcitxInputContext2 instead
Merge branches 'master' and 'preedit_blacklist' into lilydjwg