Warning about integer vertex names refers to 0.11.0

[szhorvat]

This warning about integer vertex names still refers to version 0.11.0. We are well past that.

python-igraph/src/igraph/basic.py

Lines 61 to 69 in d730167

	if isinstance(name, int):
	# raise TypeError("cannot use integers as vertex names; use strings instead")
	deprecated(
	"You are using integers as vertex names. This is discouraged because "
	"most igraph functions interpret integers as vertex _IDs_ and strings "
	"as vertex names. For sake of consistency, convert your vertex "
	"names to strings before assigning them. Future versions from igraph "
	"0.11.0 will disallow integers as vertex names."
	)