config level fix for Mac OS X 10.9 (Mavericks). Optimize Noakes-Kalvius formulae. Update of docu.

ChangeLog

@@ -38,6 +38,8 @@ NEW 2012-05-12 added dump_header. This is a little program which dumps the
 NEW 2012-04-24 added a first version for negative muon fitting. At the same 
                time substaintial bug fixing has been carried out (mainly the
 	       logx/logy handling).
+FIXED 2013-12-16 fixed a couple of bugs on level of config. This is needed expecially
+                 for Mac OS X 10.9 (Mavericks).
 FIXED 2013-11-29 in the global mode of msr2data for run lists, instread of the
                  value of the global parameter, the positive error was written into
                  the DB file. This is fixed now.
@@ -58,6 +60,8 @@ FIXED 2012-09-23 fixed wrong chisq output in musrview if expected chisq is
                  present.
 FIXED 2012-05-30 fixed RRF  bug in single histo plotting.
 FIXED 2012-05-18 fixed wrong forward/backward tag for ROOT-PPC (MUSR-215) 
+CHANGED 2013-12-16 prettyfied the Noakes-Kalvius formulae. Furthermore added 
+                   a sub-folder with cross checks for these formulae.
 CHANGED 2013-11-12 changed normalization of log max likelihood according to S.
 Backer and R.D. Cousins NIM 221, 437 (1984), in order to have a
 "goodness-of-fit" criteria.