* configure.ac (AC_INIT): Bump version to 0.8.
(PKG_CHECK_MODULES): Require gconfmm-2.6 >= 2.6.1.
(REGEXXER_GCONFMM_VALUE_HACK): Remove.

* src/miscutils.{cc,h}
(check_for_broken_gconfmm_value_changed): Remove.
(has_broken_gconfmm_value_changed): Remove.

* src/main.cc (main): Remove call to gconfmm bug runtime test.

* src/filebuffer.cc (on_config_value_changed): Remove hack.
* src/filetree.cc (on_config_value_changed): ditto
* src/mainwindow.cc (on_config_value_changed): ditto.
* src/prefdialog.{cc,h} (on_config_value_changed_hack): Remove.