fixed Module_writeConfFile.t test
Added force default mode and permission to EBox::Module::Base::writeConfFileNoCheck, EBox::Module::Base::writeFile and derivatives
fixed test description
Force mode when writing QA apt ocnfiguration file
Force mode when restoring apt preferences file from cloud
Merge branch 'jag/assure-qapreferences-mode'

Conflicts:
	main/core/ChangeLog