Merge branch '3.1.1-m@@3' into '3.1.3'

3.1.1 m@@3

See merge request zstackio/zstack-utility!2055

Merge branch '2.0.x_uilog' into '2.0.x'

Fix bug #4294

See merge request !303

Fix missing set true in vxlan checking

Missing a "rsp.success = True" in vxlan checking.

add more apis

Added disk virtual size in the image manifest

fix not install ui bug.

change version to 1.0

fix install script

upgrade install.sh from downloading 0.7.1 to 0.8.0 tar ball