Use GConf and GSettings both, check GConf/GSettings toolbar style and font name.

Use GConf and GSettings both, check GConf/GSettings toolbar style and font name.

* configure.in (HAVE_GCONF): Allow both HAVE_GCONF and HAVE_GSETTINGS.

* lisp/dynamic-setting.el (dynamic-setting-handle-config-changed-event):
Update doc string.

* src/xsettings.c: Use both GConf and GSettings if both are available.
(store_config_changed_event): Add comment.
(dpyinfo_valid, store_font_name_changed, map_tool_bar_style)
(store_tool_bar_style_changed): New functions.
(store_monospaced_changed): Add comment. Call dpyinfo_valid.
(struct xsettings): Move font inside HAVE_XFT.
(GSETTINGS_TOOL_BAR_STYLE, GSETTINGS_FONT_NAME): New defines.
(GSETTINGS_MONO_FONT): Renamed from SYSTEM_MONO_FONT.
Move inside HAVE_XFT.
(something_changed_gsettingsCB): Renamed from something_changedCB.
Check for changes in GSETTINGS_TOOL_BAR_STYLE and GSETTINGS_FONT_NAME
also.
(GCONF_TOOL_BAR_STYLE, GCONF_FONT_NAME): New defines.
(GCONF_MONO_FONT): Renamed from SYSTEM_MONO_FONT. Move inside HAVE_XFT.
(something_changed_gconfCB): Renamed from something_changedCB.
Check for changes in GCONF_TOOL_BAR_STYLE and GCONF_FONT_NAME also.
(parse_settings): Move check for font inside HAVE_XFT.
(read_settings, apply_xft_settings): Add comment.
(read_and_apply_settings): Add comment.  Call map_tool_bar_style and
store_tool_bar_style_changed.  Move check for font inside HAVE_XFT and
call store_font_name_changed.
(xft_settings_event): Add comment.
(init_gsettings): Add comment.  Get values for GSETTINGS_TOOL_BAR_STYLE
and GSETTINGS_FONT_NAME.  Move check for fonts within HAVE_XFT.
(init_gconf): Add comment.  Get values for GCONF_TOOL_BAR_STYLE
and GCONF_FONT_NAME.  Move check for fonts within HAVE_XFT.
(xsettings_initialize): Call init_gsettings last.
(xsettings_get_system_font, xsettings_get_system_normal_font): Add
comment.