Create archiv-fur-die-civilistische-praxis.csl

Some issues in the style guide for this journal are not implemented automatic but have to be handled manually, e.g. "Festschriften" should not mention editors (i.e. delete them manually), pages for journal article should maybe more fuzzy like "328 ff" or what a "Archivzeitschrift" is where volume is shown.
Thank you, I didnt't know that there exists a variable page-first. I changed this and delete the macro for Travis.