add feature to use Hipchat Server

[netmarkjp]

I wrote small patch to add feature to use this module with Hipchat Server.

Default behavior did not change

regex pattern in hypchat.restobject._urls_to_objects change to short.
I think this change has no effect in practical.

regards.

[AstraLuma]

1. Python 3 is now supported. str.format() should be used instead of %.
2. Prefixing all the regexes with .* just smells of trouble.
3. None of the support/testing scripts were adjusted to support endpoints.

My suggestion for #2 is that Linker._obj_from_text() should be adjusted to remove the endpoint and the regex's only compared to e.g. /v2/room/foobar.

[netmarkjp]

@astronouth7303 thanx for comment. fix that.

[rrreeeyyy]

👍

[koemu]

👍

[successamp]

Thank you!