Javadoc
Added confirmation dialog to isbn fetching
Merge pull request #788 from jidel/issue#770-lehrmittel

Issue#770 lehrmittel
Resize images if they are too big
Merge pull request #789 from jidel/issue#782-help_images

Resize images if they are too big
weitere kleine Performanceoptimierung
Merge pull request #791 from davvitt/littlePerformanceOpt

weitere kleine Performanceoptimierung
Provide css to style the help files
Refactor html code
Merge pull request #792 from jidel/issue#790-help_css

Issue#790 help css
Merge pull request #793 from HumBuch/develop

release version 1.1.18