[Pharo-project] Issue 2635 - methods recategorization

Hi, I finished the list of changes for the issue http://code.google.com/p/pharo/issues/detail?id=2635. This issue is the next step after already integrated packages reorganization and the goal is to have compact package base a the small headless PharoKernel image. Most changes are simple naming unification and some classes I skipped because they need deeper refactorings. I will now check the list once more. -- Pavel