AIDACC: use virtual inheritance also for client side remote handles
UI: fix signedness yielding wrong results in PixmapT<Pixbuf>::compare
TESTS: imgcheck: raise pixel threshold from 0.5% to 6% to deal with newer cairo
UI: pango: fix antialiasing for insensitive and scalable text rendering
RCORE: quicktimer.cc: fix unbalanced parenthesis
RCORE: xmlnode.cc: fix bad iterator access in del_attribute()
UI: widget.cc: fix NULL dereference in grab_focus()
Merge branch 'fixes-14.04'

* fixes-14.04:
  UI: widget.cc: fix NULL dereference in grab_focus()
  RCORE: xmlnode.cc: fix bad iterator access in del_attribute()
  RCORE: quicktimer.cc: fix unbalanced parenthesis
  UI: pango: fix antialiasing for insensitive and scalable text rendering
  TESTS: imgcheck: raise pixel threshold from 0.5% to 6% to deal with newer cairo
  UI: fix signedness yielding wrong results in PixmapT<Pixbuf>::compare
  AIDACC: use virtual inheritance also for client side remote handles