commands: fix paths command docstring indention

hgweb: commit forgotten update to a3d7f99c23c0

hgweb: support custom http headers in ErrorResponse

hgweb: pass ErrorResponses directly into req.respond()

merge with mpm

hgk: Add background colour setting Adds the bgcolor config variable, that sets the background colour of the text and canvas frames.

commands: removed unnecessary string concatenation

patch: turned strings with backslashes into raw strings In Python, the backslash in an unrecognized escape sequence is left behind, which makes '\.' the same as r'\.'. Relying on this feature is quite brittle, IMHO. Removed unnecessary string concatenation as well.