[Kst] kdeextragear-2/kst/kst

[George Staikos]

CVS commit by staikos: 

- fix numerous regressions related to KIO integration.  one remains (it creates
  a KIO storm)
- enable/disable the OK button based on whether we can create a vector or not.
  the same goes for the Field combo.  There is a bit of flicker in the Field
  combo still


  M +1 -1      kstdatasource.cpp   1.63
  M +38 -28    kstvectordialog_i.cpp   1.69
  M +2 -0      kstvectordialog_i.h   1.24
  M +0 -20     vectordialog.ui   1.37