removed dead code

logged in is already covered by Auth
code formatting
inlined function
code formatting
moves prepare answer from entries controller to entry model
moved edit logic from entries controller to entry model
fixes #148 encoding in [code] block not working
moved bbcode text preprocessor from controller to model
code refactoring
central bbcode settings object
moves bbcode preprocess testcase from component to behavior
fixes failing test cases
refactored Entry category validation
refactored editing allowed in Entry model
code formatting
bugfix Entry
fixes text not editable
robuster test case for saitouser with id zero
Merge branch 'develop' into feature/cake-2.4b
update to cake 2.4b