updated NEWS entries and references

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/distr@949 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
[distr] commented back in the faster right-tail approximation in R-Core C-Code for kolmogoroff distribution

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/distr@950 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
[distr] 
- qqplot:
 + (already there for a while) gains argument 'debug' to be able to trace where computation of confidence bounds fails; 
   this 'debug' argument has now been enhanced in the sense that now more detailed information about which 
   helper function was the culprit and where (uniroot/optimize) this happens

- qqbounds: 
  + the respective helper functions .BinomCI.nosym, .BinomCI, .q2kolmogorov capsulate their calls to uniroot / optimize in 
   individual try-catches (instead of / on top of the one in  qqbounds itself) so that in case of several evaluations (e.g. in
   pointwise CIs) at least a subset of valid points is produced.
  + the respective helper functions .BinomCI.nosym, .BinomCI, .q2kolmogorov, .q2pw give more detailed information when
    a try catch happens
  + In addition the search interval is now more flexible: it is bound away from 0 below and from the upper bound from above, and this
   bound moves to the respective lower/upper bounds in up to 20 trials.
  + Also, the search interval for .q2kolmogorov if argument 'exact' is    TRUE (i.e., if pKolmogorov2x is called) has been refined. 
   This all should make the simultaneous intervals more stable.


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/distr@951 edb9625f-4e0d-4859-8d74-9fd3b1da38cb