Merge branch '50-prepare-presentation-slides' of git.informatik.uni-leipzig.de:text-mining-chatbot/wiki-rasa into 50-prepare-presentation-slides

Merge branch '50-prepare-presentation-slides' of git.informatik.uni-leipzig.de:text-mining-chatbot/wiki-rasa into 50-prepare-presentation-slides

Resolve "Fix issue with cache file handling in nlp_annotate"

Closes #52

See merge request !55

Resolve "Export data for rasa"

Closes #28

See merge request !31

Resolve "Enhancing R: Remove Return Statements"

Closes #38

See merge request !53

Resolve "Make create_annotation parameteters optional"

Closes #43

See merge request !37

added propper error handling to infobox getter.

Closes #42

See merge request !51

# Conflicts:
#   processing/wikiproc/R/nlp_annotate.R

Resolve "Add imports from utils"

Closes #47

See merge request !46

Adds use of annotations to get_birthplace.R.

Closes #46

See merge request !44

# Conflicts:
#   processing/wikiproc/R/get_birthplace.R

Replace return(NULL) with return(NA)

Closes #41

See merge request !40

* fix some typos

fixes #41

Resolve "Create pattern matching function"

Closes #33

See merge request !32

Resolve "Add unit tests for clean_html.R"

Closes #32

See merge request !34

Resolve "Enhancing Rasa (Documentation)"

Closes #34

See merge request !36