Fix #3668: Add back isConfigured by checking if instance folder has been configured or not. Also enable the way of upgrading from a milestone to a stable version (#3682)
Fix #3668: Add back isConfigured by checking if instance folder has been configured or not. Also enable the way of upgrading from a milestone to a stable version (#3682)

For now 5.0.0 was handled as being < 5.0.0-M9 for example.

Change-Id: I417415e520a3b447d621521fb52b368d7216a46d
Signed-off-by: Florent BENOIT <aed23c9e57d07943853fa5abcd82c7d7f632be43@codenvy.com>
davidfestal/che,sleshchenko/che,jonahkichwacoders/che,akervern/che,jonahkichwacoders/che,bartlomiej-laczkowski/che,sunix/che,bartlomiej-laczkowski/che,cemalkilic/che,davidfestal/che,bartlomiej-laczkowski/che,gazarenkov/che-sketch,snjeza/che,sudaraka94/che,gazarenkov/che-sketch,lehmanju/che,sunix/che,jonahkichwacoders/che,cemalkilic/che,snjeza/che,bartlomiej-laczkowski/che,sunix/che,codenvy/che,cdietrich/che,jonahkichwacoders/che,cemalkilic/che,jonahkichwacoders/che,lehmanju/che,cdietrich/che,sunix/che,jonahkichwacoders/che,Patricol/che,davidfestal/che,cemalkilic/che,Patricol/che,TypeFox/che,bartlomiej-laczkowski/che,sudaraka94/che,sleshchenko/che,TypeFox/che,davidfestal/che,davidfestal/che,gazarenkov/che-sketch,codenvy/che,lehmanju/che,cemalkilic/che,akervern/che,gazarenkov/che-sketch,TypeFox/che,akervern/che,sleshchenko/che,lehmanju/che,snjeza/che,jonahkichwacoders/che,sudaraka94/che,cdietrich/che,sleshchenko/che,sunix/che,cemalkilic/che,sleshchenko/che,cdietrich/che,davidfestal/che,gazarenkov/che-sketch,Patricol/che,TypeFox/che,Patricol/che,sudaraka94/che,gazarenkov/che-sketch,sleshchenko/che,TypeFox/che,bartlomiej-laczkowski/che,akervern/che,cdietrich/che,cdietrich/che,sudaraka94/che,sunix/che,davidfestal/che,sleshchenko/che,Patricol/che,Patricol/che,sunix/che,lehmanju/che,TypeFox/che,akervern/che,lehmanju/che,akervern/che,Patricol/che,Patricol/che,cdietrich/che,bartlomiej-laczkowski/che,jonahkichwacoders/che,TypeFox/che,snjeza/che,sunix/che,snjeza/che,gazarenkov/che-sketch,lehmanju/che,TypeFox/che,lehmanju/che,sudaraka94/che,davidfestal/che,sudaraka94/che,lehmanju/che,cdietrich/che,davidfestal/che,akervern/che,jonahkichwacoders/che,davidfestal/che,sleshchenko/che,bartlomiej-laczkowski/che,snjeza/che,snjeza/che,sudaraka94/che,bartlomiej-laczkowski/che,sleshchenko/che,sudaraka94/che,cemalkilic/che,codenvy/che,sudaraka94/che,akervern/che,TypeFox/che,Patricol/che,cemalkilic/che,snjeza/che,sleshchenko/che,jonahkichwacoders/che,snjeza/che,codenvy/che,cdietrich/che,Patricol/che,TypeFox/che,sunix/che,cemalkilic/che,gazarenkov/che-sketch,gazarenkov/che-sketch,akervern/che