config: read_file() instead of deprecated readfp()

  ragweed/framework.py:385: DeprecationWarning: This method will be removed in future versions.  Use 'parser.read_file()' instead.
    cfg.readfp(f)

Signed-off-by: Casey Bodley <cbodley@redhat.com>

add tox.ini and update README

Signed-off-by: Casey Bodley <cbodley@redhat.com>

remove bootstrap script

Signed-off-by: Casey Bodley <cbodley@redhat.com>

remove nose imports

Signed-off-by: Casey Bodley <cbodley@redhat.com>

Merge pull request #25 from yehudasa/pytest

ragweed: switch to pytest framework

ragweed: switch to pytest framework

due to deprecation of nose

Signed-off-by: Yehuda Sadeh <yehuda@redhat.com>

Merge pull request #23 from ceph/wip-58510

bootstrap: use python3-venv instead python3-virtualenv

Merge pull request #24 from mkogan1/wip-58549

on ubuntu 20.04 the `python3-distro-info` package causes error

Reviewed-by: Casey Bodley <cbodley@redhat.com>

bootstrap: use python3-venv instead python3-virtualenv

on ubuntu 22.04, the 'virtualenv' command has no virtualenv/bin
subdirectory, so bootstrap fails with:

./virtualenv/bin/pip: not found

Signed-off-by: Casey Bodley <cbodley@redhat.com>

on ubuntu 20.04 the `python3-distro-info` package causes error

`Invalid version: '0.23ubuntu1' (package: distro-info)`
during bootstrap executing the command:
`./virtualenv/bin/python setup.py develop`

ref:
https://bugs.launchpad.net/ubuntu/+source/distro-info/+bug/1991606/comments/18

Fixes: https://tracker.ceph.com/issues/58549
Signed-off-by: mkogan <mkogan@ibm.com>

Merge pull request #22 from mkogan1/fix-venv-distribute

rgw: ragweed: fix virtualenv error unrecognized argument --distribute