Added word case chart
Syntax refining
Refining of def add_group_to_db

Function "def add_group_to_db" was straightened out.
Additional one forgotten line of the syntax refine commit is included here
Merge branch 'word_case_chart' of https://github.com/Koblaid/Translator into Koblaid-word_case_chart

Conflicts:
	server.py
Bug resolved, split of db-creation

- Bug when creating db was resolved in applying changed db field name to all concerning files.
- Creation of db was separated from the insertions.
- New insertions file 'db_insertions_GER-SWE.sql' added.
(might be used as template for future language/grammar combinations)