HaikuDepot; Ability to Force the HDS Server Base URL and Defaults for Repository Codes

[apl-haiku]

This is a change so that HaikuDepot can be run with an additional argument in order to force the HDS server that it will talk to for that run. This is required because otherwise it is not possible to test HD with the test HDS server. This change is also handy for development of HDS locally; to help with this it will also cope with HTTP and HTTPS schemes.

Also, there are changes in the test HDS server at the moment that require a repository code to be provided. For the time being, I have hard-coded the repository code to "haikudepot" in the HD source.

[apl-haiku]

Hi Stephan; When you get a moment, can you please check this patch. I think this set of changes should allow the new version of HDS to go to production.

[stippi]

Patch looks fine aside from two minor coding style issues. Thanks for your work! I have some work in progress stuff in my Haiku tree and I am not so good with git, or I don't have the time right now to google how to use the scratch area or what it is called in git. So if someone has the time to commit this patch, I would be very thankful!

[bonefish]

git stash to stash away uncommitted changes. git stash pop to bring them back. Works like a stack. git stash list to list all stashed changes.

[stippi]

Thanks for the reminder on "git stash"! Maybe I have some time tonight to commit the patch.

[kallisti5]

Compile tested on x86_64. I adjusted the commit description to better match our style guidelines

Pushed in hrev49418.