Update uim to 1.5.5.
Based on patch from Yamashiro, Jun in tech-pkg-ja@.

While here, deprecate curses and x11 option then introduce uim-fep and xim
option to exactly enable/disable those features.

Overview of changes from 1.5.4 to 1.5.5
=======================================
* Enhancements
  - uim-anthy
  - uim-anthy-utf8
    * Learn transposing Katakana/Hiragana string (bug #18630)

  - misc Japanese IM
    * AZIK roma-kana table update
    * Don't use "nwa", "nwi", "nwu", "nwe", "nwo" roma-kana sequences
      by default

  - uim-pref-gtk
  - uim-pref-qt
    * Reduced startup time

* Fixes
  - GTK+ bridge
  - uim.el
  - uim-skk
  - uim-look
    * Plug memory leaks

  - uim-dict-gtk
    * Fix warning with GTK+-2.14.x

Overview of changes from 1.5.3 to 1.5.4
=======================================
* Enhancements
  - Generic IM
    * Cache candidates to improve the performance
    * Add an option to show candidate window automatically when
      multiple candidates are found

  - uim-tutcode
    * New symbol (kigou) input mode

  - GTK+ bridge
  - Qt{3,4} bridge
  - XIM bridge
    * Improve the performance upon activating the window with large
      number of candidates

* Fixes
  - uim.el
    * Plug memory leak.
    * Ignore 'd' command if valid uim-default-im-engine is defined

  - uim-fep
    * Fix compilation with Solaris' cc

  - uim-skk
    * Fix handling in non-matching upper case character in
      skk-proc-state-direct.

  - uim-pref-gtk
    * Fix warning with GTK+-2.14.x

Overview of changes from 1.5.2 to 1.5.3
=======================================
* Fixes
  - Qt4 bridge (experimental)
    * [CRITICAL] Fix bug with Qt4 >= 4.4.1, which makes applications
      infinite loop at the startup
    * [CRITICAL] Fix uim-helper handling which could cause unexpected crashes
    * Fix key press with shift, control, alt, and meta keys

  - uim-xim
    * Fix some minor protocol errors

  - uim.el
    * Improve minibuffer editing

  - uim-tutcode
    * Fix out-of-range error when candidates are longer than
      tutcode-heading-label-char-list

* Others
  - uim-toolbar-gtk-systray
    * Adjust ythickness of the buttons

  - uim-pref-gtk
    * Add vertical scrollbar for the setting pane

Overview of changes from 1.5.1 to 1.5.2
=======================================
* Enhancements
  - Enable input method rotation by hotkeys

  - uim-trycode
    * Updated the composition table to 2008-04-18 version

* Fixes
  - uim.el
    * [CRITICAL] Fix breaking minor-mode-map-alist in some cases.
    * [CRITICAL] Fix uim-el-helper-agent
    * Fix displaying candidates when a right-hand neighbor
      character of the cursor is a horizontal-tab

  - uim-xim
    * Fix Japanese kana-keyboard input hack to distinguish 'kana_RO'
      key and backslash key

  - uim-canna
    * Don't disable libuim functionality even when canna server is
      stopped.

  - uim-elatin
    * Fix problem when only elatin IM is loaded.

  - uim-prime
    * Fix crash when input mode is forced to set as app-mode by
      toolbar menu while "Enable vi-cooperative mode" is off.

(obache)