Update Vagrantfile to use base centos72 image (#2388)
Update Vagrantfile to use base centos72 image (#2388)

* Update to use base centos72 image
1: Updates to use base image and performs a 1-time install of Docker at the beginning.
2: Checks all environment variables for accuracy
3: Set the default version to 4.7.2

* Update Vagrantfile

jonahkichwacoders/che,davidfestal/che,sleshchenko/che,akervern/che,lehmanju/che,ollie314/che,codenvy/che,akervern/che,sunix/che,sleshchenko/che,cdietrich/che,akervern/che,davidfestal/che,snjeza/che,sudaraka94/che,TypeFox/che,gazarenkov/che-sketch,sleshchenko/che,bartlomiej-laczkowski/che,davidfestal/che,TypeFox/che,TypeFox/che,jonahkichwacoders/che,cdietrich/che,bartlomiej-laczkowski/che,sleshchenko/che,snjeza/che,ollie314/che,codenvy/che,cdietrich/che,lehmanju/che,jonahkichwacoders/che,sudaraka94/che,davidfestal/che,bartlomiej-laczkowski/che,akervern/che,gazarenkov/che-sketch,gazarenkov/che-sketch,sleshchenko/che,sleshchenko/che,sunix/che,snjeza/che,jonahkichwacoders/che,sudaraka94/che,ollie314/che,bartlomiej-laczkowski/che,cdietrich/che,Patricol/che,Patricol/che,sudaraka94/che,jonahkichwacoders/che,snjeza/che,cemalkilic/che,davidfestal/che,Mirage20/che,akervern/che,sleshchenko/che,jonahkichwacoders/che,cemalkilic/che,jonahkichwacoders/che,cemalkilic/che,sunix/che,bartlomiej-laczkowski/che,sunix/che,davidfestal/che,sudaraka94/che,cemalkilic/che,cemalkilic/che,davidfestal/che,lehmanju/che,lehmanju/che,Patricol/che,lehmanju/che,jonahkichwacoders/che,snjeza/che,Patricol/che,TypeFox/che,gazarenkov/che-sketch,akervern/che,TypeFox/che,davidfestal/che,ollie314/che,lehmanju/che,sleshchenko/che,lehmanju/che,Patricol/che,cdietrich/che,codenvy/che,Mirage20/che,Patricol/che,jonahkichwacoders/che,TypeFox/che,lehmanju/che,codenvy/che,cdietrich/che,cdietrich/che,cemalkilic/che,gazarenkov/che-sketch,Patricol/che,sudaraka94/che,gazarenkov/che-sketch,sleshchenko/che,bartlomiej-laczkowski/che,TypeFox/che,ollie314/che,lehmanju/che,sleshchenko/che,gazarenkov/che-sketch,gazarenkov/che-sketch,jonahkichwacoders/che,sudaraka94/che,sunix/che,cdietrich/che,snjeza/che,Patricol/che,TypeFox/che,akervern/che,snjeza/che,snjeza/che,cemalkilic/che,Mirage20/che,sudaraka94/che,bartlomiej-laczkowski/che,sudaraka94/che,gazarenkov/che-sketch,bartlomiej-laczkowski/che,Mirage20/che,cemalkilic/che,bartlomiej-laczkowski/che,TypeFox/che,sunix/che,akervern/che,Mirage20/che,Patricol/che,Patricol/che,cemalkilic/che,sunix/che,snjeza/che,Mirage20/che,davidfestal/che,akervern/che,sudaraka94/che,davidfestal/che,sunix/che,cdietrich/che,TypeFox/che,sunix/che,ollie314/che