Made changes to fit Daniels data

The getBounds function is more robust. Hopefully the fits are OK but
care should still be taken and the plots should be looked while fitting.
Updated detrending code/data
Merge pull request #2 from gnaist/master

Updated detrending code/data
new effort of making code run
Merge remote-tracking branch 'upstream/master'
Daniel's update

Added file "Matz_uncertainty_code_DS.R"