Java database fixed mayor backdoor
Java database Comment and Node almost finished
Java database COmment and Node finished for now, also much updates to most other classes
Java database updated Idea methods, only deleteIdea method still todo
Java database added deleteIdea method
Created XML reader. Now DBConnection can be safely pushed to github
all add/get/delete methods finished except for Role
minor updates
merged database into tests
fixed compilation errors
Tools.java merge