Bug #673013 - Doesn't expose webkit Cflags/Libs

Fixes #includes in mail/e-mail-display.h and adds webkitgtk-3.0 as dependency
to some pkgconfig files. This prevented external modules like evo-gw to compile
against Evolution.

evolution-plugin.pc.in

@@ -15,6 +15,6 @@ errordir=@privdatadir@/errors
 Name: evolution-plugin
 Description: libraries needed for Evolution plugin development
 Version: @VERSION@
-Requires: camel-1.2 libxml-2.0 libgtkhtml-4.0 gtkhtml-editor-4.0
+Requires: camel-1.2 libxml-2.0 libgtkhtml-4.0 gtkhtml-editor-4.0 webkitgtk-3.0
 Libs: -L${privlibdir} -leutil -Wl,-R${privlibdir}
 Cflags: -I${privincludedir}

evolution-shell.pc.in

@@ -17,7 +17,7 @@ execversion=@BASE_VERSION@
 Name: evolution-shell
 Description: libraries needed for Evolution shell components
 Version: @VERSION@
-Requires: gtk+-3.0 gconf-2.0 libedataserverui-3.0
+Requires: gtk+-3.0 gconf-2.0 libedataserverui-3.0 webkitgtk-3.0
 Requires.private: gnome-desktop-3.0
 Libs: -L${privlibdir} -leshell -Wl,-R${privlibdir}
 Cflags: -I${privincludedir}

mail/e-mail-display.h

@@ -22,8 +22,8 @@
 #ifndef E_MAIL_DISPLAY_H
 #define E_MAIL_DISPLAY_H
 
-#include <widgets/misc/e-web-view.h>
-#include <widgets/misc/e-search-bar.h>
+#include <misc/e-web-view.h>
+#include <misc/e-search-bar.h>
 #include "em-format-html.h"
 
 /* Standard GObject macros */