dev-python: merge most python2 and python3 recipes.

* adjust recipes depending on these, ie python_dateutil=>dateutil_python.
* switch architectures to any for relevant python recipes.
* bump versions for retext, argh, beautifulsoup, cssselect, dateutil,
docutils, fonttools, html2text, httplib2, lxml, mechanize, mock, paramiko,
pillow, pip, pygments, requests, twisted, urllib3, zope_interface.

dev-util/gyp/gyp-git.recipe

@@ -4,7 +4,7 @@ DESCRIPTION="GYP is created by Google to generate native IDE project files \
 HOMEPAGE="https://gyp.gsrc.io/"
 COPYRIGHT="2012 Google Inc."
 LICENSE="BSD (2-clause)"
-REVISION="2"
+REVISION="3"
 # Note that the hash which FreeBSD keeps for this version is not the same as
 # the commit ID in the official gyp repository. This revision in the FreeBSD
 # mirror is equivalent to commit 02b145a1 in the official repository, which
@@ -24,12 +24,12 @@ PROVIDES="
 REQUIRES="
 	haiku
 	cmd:python
-	python_setuptools
+	setuptools_python
 	"
 
 BUILD_REQUIRES="
 	haiku_devel
-	python_setuptools
+	setuptools_python
 	"
 BUILD_PREREQUIRES="
 	cmd:python