Add x11-libs/qtwebkit-2.3.4

This brings webkit-2.3 to Qt 4.8.
Add virtual/qtwebkit
app-office/calligra: Depend on virtual/qtwebkit
app-pim/libkgapi: Depend on virtual/qtwebkit
kde/kate: Depend on virtual/qtwebkit
kde/kde-runtime: Depend on virtual/qtwebkit
kde/kde-workspace: Depend on virtual/qtwebkit
kde/kdelibs: Depend on virtual/qtwebkit
kde/kdepim: Depend on virtual/qtwebkit
kde/kdeplasma-addons: Depend on virtual/qtwebkit
kde/kdevelop: Depend on virtual/qtwebkit

Change-Id: Ice91f6dddff6e69ea99e84624d0652fedc238be0
kde/kdevplatform: Depend on virtual/qtwebkit
kde/kwebkitpart: Depend on virtual/qtwebkit
kde/marble: Depend on virtual/qtwebkit
kde/pykde4: Depend on virtual/qtwebkit
kde/rocs: Depend on virtual/qtwebkit
media-sound/amarok: Depend on virtual/qtwebkit
net-www/rekonq: Depend on virtual/qtwebkit
sys-devel/qt-creator: Depend on virtual/qtwebkit
net-im/ktp-auth-handler: Depend on virtual/qtwebkit