message: Add box frame shape around events list
diff: <rect>
  <x>0</x>
  <y>0</y>
  - <width>279</width>
  + <width>281</width>
  <height>298</height>
  </rect>
  </property>
  </property>
  <property name="icon">
  <iconset resource="../Resources/resources.qrc">
  - <normaloff>:/arrow_left.png</normaloff>:/arrow_left.png
  - </iconset>
  + <normaloff>:/arrow_left.png</normaloff>:/arrow_left.png</iconset>
  </property>
  <property name="autoRaise">
  <bool>true</bool>
  <item>
  <widget class="RDTreeWidget" name="events">
  <property name="frameShape">
  - <enum>QFrame::NoFrame</enum>
  + <enum>QFrame::Box</enum>
  </property>
  <property name="frameShadow">
  <enum>QFrame::Plain</enum>
  