STAAS (File and Block) Hourly billing changes

[sunilvrajput]

Add the '--billing' flag to volume-order and volume-duplicate commands, and add logic within snapshot space and replication orders to use hourly billing if the original volume used hourly billing.

[coveralls]

Coverage increased (+0.06%) to 85.206% when pulling 879dd19 on sunilvrajput:sunil-sl-master into 05b95c7 on softlayer:master.

[allmightyspiff]

are these changes good to be merged?

[dpickle2]

QE testing is still in progress for this, but everything seems to be okay so far.

[dpickle2]

Okay, we have found at least one bug. I'll try to get a fix pushed up tomorrow morning.

[dpickle2]

Update: The bug mentioned above is not actually related to the changes in this pull request. I've created issue #870 to handle this bug. I have not yet received confirmation that QE testing is completed, but I will follow up with the QE team.

[allmightyspiff]

@dpickle2
Just let me know when you are ready for this request to be merged. The code itself seems fine to me.

[dpickle2]

@allmightyspiff QE has tested the ordering functions and has not found any issues related to these changes. Unless there are any other concerns you have, I think this pull request should be ready to merge.