Devhelp 3.9.4 Brings Reorderable Tabs

Devhelp 3.9.4 brings reorderable tabs, forces the Ctrl+F and Ctrl+S keyboard shortcuts to focus the search entry, changes ShowSearchTab key to the Ctrl+K keyboard shortcuts, and uses WEBKITGTK_PC_NAME for .pc. Thanks to Xavier Claessens and Frederic Peters, Empathy 3.9.4 fixes a system crash when typing a long string (bug #702095), fixes an issue with ContactSearch not being cleared (bug #703775), and correctly sorts groups and contacts (bug #703453).