Replace classic for with for each loop
Fix Javadoc @link tag
Add IntelliJ files to .gitignore
Remove useless null assignment
Make map with id columns final in QueryGenerator
Perform a copy of the collection in high-lighter renderer
Remove useless StringBuilder calls
Remove useless toString call
Fix Javadocs on GUIElement class
Allocate array of proper size
Replace indexOf() == -1 by contains
Replace concrete collection class by interface