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
bugfixes
Merge pull request #794 from jidel/issue#790-help_css

bugfixes
Changed structure of hmtl document
Fix NPE
Added cancel button to categories and school year tables
Merge pull request #796 from jidel/issue#795-review_help

Changed structure of hmtl documents
Merge pull request #797 from jidel/issue#773_abort-button

Issue#773 abort button
further performance improvements
add jmeter test scenario
fixed bug due to Integer instead of int
Merge pull request #800 from davherrmann/performance

Performance improvements
Implements StreamSource now
Use PrintingComponent to display the help