Add changes to "Tools and methods" chapter.

Changes suggested by Lars-Henrik.
Add changes to "model 1" chapter.

Changes suggested by Lars-Henrik.
Add changes to "Analysis of model 1" chapter.

Changes suggested by Lars-Henrik.
Merge branch 'master' of github.com:ekarini/bachelor_thesis

Conflicts:
	chapters/modelling_tools.tex
	listings/teclaexample
	miscellaneous/preamble.tex