config/VirtualBox_VMs/vegbiendev/README.TXT: added instructions to install system updates

config/VirtualBox_VMs/vegbiendev/README.TXT: to test the import: bin/import_all: documented runtime (50 min)

config/VirtualBox_VMs/vegbiendev/README.TXT: to test the import: added steps to run the import

config/VirtualBox_VMs/vegbiendev/README.TXT: to set up the VM: added steps to move vegbiendev.vdi to the internal hard drive

config/VirtualBox_VMs/vegbiendev/README.TXT: to test the import: added steps to start the VM

config/VirtualBox_VMs/vegbiendev/README.TXT: moved "set up the VM" steps to separate section

config/VirtualBox_VMs/vegbiendev/README.TXT: pg_restore: added steps to create a booted snapshot

config/VirtualBox_VMs/vegbiendev/README.TXT: moved creation of pg_restore snapshot to be part of just the database backup section

config/VirtualBox_VMs/vegbiendev/README.TXT: pg_restore: documented runtime (15 min)

config/VirtualBox_VMs/vegbiendev/README.TXT: pg_restore: time the operation