Merge branch '2990_cleanup'

Merge branch '2990_cleanup'

* 2990_cleanup: (32 commits)
  Remove LC_ALL from info_size. INFO file generate without LC_ALL e.g. in current locale. Size must be computed with same locale, otherwise INFO file will be chopped of
  mceditor: last_bracket: make member of WEdit.
  Use "'" instead of "`" for messages and comments quoting.
  Search callbacks should return mc_search_cbret_t not int.
  Fix filename for msppt in ext.d/doc.sh: use $MC_EXT_FILENAME not %f.
  Fix info for ogg files in sound.sh
  Minor otimization of syntax highlightimg engine:
  (compare_word_to_right): use correct upper boundary of scanned text.
  option_whole_chars_search: unsed variable. Remove it and related code.
  (edit_update_screen): fix of editor frame drawing.
  src/editor/editcmd.c: remove unneeded include layout.h.
  Fix documentation: use actual menu item names.
  (edit_about): update year.
  (vfs_get_encoding): optimization and enhancement:
  (button_set_text): update value of WButton::hotpos.
  Use tty_draw_box instead of draw_box() to draw frames.
  (smbfs_fake_share_stat): don't access to free'd memory.
  Remove vfs_path_to_str() function for avoid often memory allocations.
  Use G_N_ELEMENTS macro to calculate of array size.
  WEdit::labels is unused. Remove.
  ...