Maintainers for qt4-dev-tools are Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>.
You may want to refer to the following packages that are part of the same source: libqt4-dbg, libqt4-dbus, libqt4-declarative, libqt4-declarative-folderlistmodel, libqt4-declarative-gestures, libqt4-declarative-particles, libqt4-declarative-shaders, libqt4-designer, libqt4-designer-dbg, libqt4-dev, libqt4-dev-bin, libqt4-help, libqt4-network, libqt4-opengl, libqt4-opengl-dev, libqt4-phonon, libqt4-qt3support, libqt4-qt3support-dbg, libqt4-script, libqt4-script-dbg, libqt4-scripttools, libqt4-sql, libqt4-sql-ibase, libqt4-sql-mysql, libqt4-sql-odbc, libqt4-sql-psql, libqt4-sql-sqlite, libqt4-sql-sqlite2, libqt4-sql-tds, libqt4-svg, libqt4-test, libqt4-xml, libqt4-xmlpatterns, libqt4-xmlpatterns-dbg, libqtcore4, libqtdbus4, libqtgui4, qt4-bin-dbg, qt4-default, qt4-demos, qt4-demos-dbg, qt4-designer, qt4-doc, qt4-doc-html, qt4-linguist-tools, qt4-qmake, qt4-qmlviewer, qt4-qtconfig, qtcore4-l10n.
You might like to refer to the qt4-dev-tools package page, to the Package Tracking System, or to the source package src:qt4-x11's bug page.
If you find a bug not listed here, please report it.