Add details for network commands
update readme - part 1
update readme
Merge branch 'release-0.7.1' of https://github.com/WindowsAzure/azure-sdk-tools-xplat into release-0.7.1
update changelog and readme for 0.7.1
update readme
Merge pull request #919 from guangyang/release-0.7.1

update changelog and readme for release 0.7.1
Merge branch 'master' of https://github.com/WindowsAzure/azure-sdk-tools-xplat into release-0.7.1
Merge pull request #920 from guangyang/release-0.7.1

Merge release 0.7.1 to master