find application/ library/Icinga/ test/ modules/ -name *.php | xargs sed -i '/^$/N;/^\n$/D'
find application/ library/ test/ modules/ -name *.php | xargs sed -i 's/\s\+$//'
Added the clearstatcache call before enabling or disabling modules, as this prevents a 'File exists' error that occurs sometimes on symlink creation (even when the folder is empty). Also added tests for teh moduleManager refs #4092