Fix typos in comments
Ignore Eclipse and IDEA project files
Remove IDEA and Eclipse project files
Prepare moving Maven module to top level

Delete .gitignore (old contents will be merged to moved file later)
and unused pom.xml
Move Maven module to top level

Remove subdirectory galileo_openbook_cleaner
Merge branch 'master' into refactor_idea_findbugs

Conflicts:
	src/de/scrum_master/galileo/TracingAspect.aj
	src/de/scrum_master/galileo/filter/JsoupFilter.java
Re-add some patterns from old .gitignore