Create main.dtd
Create main.properties
Create miscellaneous.txt
Update main.dtd
Update main.properties
Merge pull request #7 from Regmos/dev

Danish translation
update Danish Language
Update main.dtd
Update main.properties
Merge pull request #8 from Regmos/patch-1

Update main.dtd
Merge pull request #9 from Regmos/patch-2

Update main.properties
Add a new theme and update to v5.1
Merge branch 'dev' (update to v5.1)