[SystemException] renamed CoreException to SystemException
[SystemException] renamed CoreException to SystemException
[Updater] renamed SystemUpdater to Updater
visual changes in error files
added mute_system_exceptions variable to the main memory
don't throwing exceptions that inherit from SystemException, only create them

They will be thrown in the constructor
increased version to 0.7.2
Merge pull request #40 from tsapeta/0.7.x

update master to 0.7.2 version