optional, but this is likely to change after the regexxer 0.5 release.

* src/signalutils.{cc,h} (AutoConnection): New utility class that breaks
the previous connection on assignment, and also remembers the blocked state
of the connection permanently.

(ScopedBlock): Use Util::AutoConnection instead of SigC::Connection.

* src/filetree.{cc,h}: Use AutoConnection to manage the connection handles
of the currently selected buffer.

(on_selection_changed): Thanks to AutoConnection, we can now extinguish
a fair bit of error-prone code.

* autogen.sh: Require automake >= 1.7.
* configure.ac: ditto.

into local variables, rather than invoking hide() to delete them.  That way
delete won't be called before hide() actually returned.

(on_about_dialog_hide): Don't use std::auto_ptr<>::reset() but transfer
ownership into local variables.  I had a look at the libstdc++-v3 headers and
it gave me the creeps -- reset() deletes _before_ assigning the new pointer.

(on_preferences): ditto.

a while ago.

(ContributorBox): Likewise, and also improve the widget arrangement if the
dialog gets resized.

need to keep them around anymore since the config option to hide one or the
other is gone.

* src/aboutdialog.cc (SelectableLabel): New fancy experiment to make labels
both selectable _and_ focusable, so that they end up in the Tab chain.

* src/aboutdialog.cc src/imagebutton.cc src/prefdialog.cc: Don't show all
children of custom "composite" widgets in the constructor.  It doesn't make
much sense since we call show_all() later on anyway.  And making these
"composite" widgets really independent components would require overriding
both show_all_vfunc() and hide_all_vfunc(), which is currently not worth
the effort.

 -- looks sweet!

unstable a while ago and there's at least one UTF-8 related bug in prior
releases that could cause crashes.

* src/pcreshell.cc (translate_to_char_offset): New function that translates
the error offset returned by pcre_compile() to a character offset into the
original regex.  This became necessary since due to the recent introduction
of escape_non_ascii(), and is more robust anyway.

* src/mainwindow.cc (on_exec_search): Deal with character offsets instead of
byte offsets.  Also, set the regex entry's selection on the character where
the error occurred.

the height of the Stop button, instead of the insane set_size_request() hack.
This way the label text gets properly aligned now.

a fun bug that caused the orange color of the current match to become
slightly brighter on each config load/save cycle.

executed, rather than the shell code to build it.  This is also what
autoconf does in its rules.

Recent GNOME applications don't seem to specify this category anymore.

using literal UTF-8 in character classes.  This still won't make it work,
but prevents the crash and forces an error message if characters in classes
are outside the Latin1 range.

Glib::set_application_name().

(ColorLabel::on_expose_event): When building with gtkmm 2.2, use
Gtk::Widget::get_style_property() instead of the ugly varargs function
gtk_widget_style_get().

to title case.

setting the bg pixmap thrice.

* src/configdata.{cc,h}: Remove config option "menutool_mode" because it's
crack now that we have undo et al.  Add config options "textview_font",
"match_color" and "current_match_color".

* src/filebuffer.{cc,h} (pango_context_changed): Assign default font to the
error_message tag.
([gs]et_match_color): New accessors to tag colors.
([gs]et_current_color): ditto.

* src/mainwindow.{cc,h} ([gs]et_menutool_mode): Get rid of these.
(on_filetree_switch_buffer): No longer modify the TextView font globally
since we set the tag now.
(on_preferences): Handle the added config settings.
(load_configuration): ditto
(save_configuration): ditto.

* src/prefdialog.{cc,h} (FontSelectionButton): New utility widget.
(ColorSelectionButton): Another new utility widget.
(PrefDialog): Revamp the preferences dialog.  That is, add GUI for the new
config settings and remove the old one.  Also replace the radio buttons for
selecting the toolbar style with an option menu.

(color_to_string): Implement.
(shell_pattern_to_regex): Handle alternative syntax '^' for negation
of character classes properly.

* src/miscutils.h (ScopedArray<>): New little utility template to manage
a dynamically allocated array.

* src/fileio.cc (load_iochannel): Ditch Glib::ScopedPtr<> (glibmm internal :)
in favor of Util::ScopedArray<>.

utility function.

* configure.ac: Put -I flags into CPPFLAGS instead of CXXFLAGS.
* macros/pcre.m4 (PCRE_CHECK_UTF8): Likewise for CFLAGS.

a proper version check.

in order to choose the one that suits us best.

(create_right_pane): Set the accessible name of the preview entry,
but replace the accessible description with a tool tip.