Network use enable/disable vs admin state up/down

Use --enable and --disable vs --admin-state-up/--admin-state-down

Change-Id: I90040b925cb537a8ba13d1dd609c51bb669cf149
Update docs and release notes for 0.4.1 release

Closes-Bug: 1365505
Change-Id: I027d263ba9980715454b034a37733c5ff23fd169
Merge "Network use enable/disable vs admin state up/down"
Merge "Update docs and release notes for 0.4.1 release"