[Kst] kdeextragear-2/kst/kst

[George Staikos]

CVS commit by staikos: 

- make the KMdiChildView* helper methods work (dynamic_cast was incorrect)
- correct KstSharedPtr usage
- remove unneeded variables
- delay creation of objects until (and only if) they are needed
- reformat
- remove unneeded tests for null
- add tests for null after dynamic_cast
- remove dead code


  M +114 -281  kstiface_impl.cpp   1.32
  M +2 -2      kstiface_impl.h   1.18