updated bibliography
added a new structure which is still incomplete and also is not optimal. I left in the old structure since some sections have to be taken over to the new structure
better version of phd index. more remarks are already on my sheet of paper. but this or a similar version will probably be discussed soon (though I know it has some problems)
first examples written down. yeah. more to come
Merge branch 'lm' of github.com:renepickhardt/phd-thesis into lm