updated bootstrap.py and nginx/psql download location
Merge pull request #4 from lovelysystems/buildout

updated bootstrap.py and nginx/psql download location
add SMTPServerLayer
update changes
make docstrings more verbose
don't use any()
add test for tearDown()
Merge pull request #5 from lovelysystems/smtpd

add SMTPServerLayer
prepare release
add missing __bases__ and prepare release
add missing __name__ to SMTPServerLayer
SMTPServerLayer's server property is now available before calling setUp()
don't bind port in __init__
set smtpd to None in __init__
change stmpd to class attribute
Merge pull request #6 from lovelysystems/smtpd

SMTPServerLayer's server property is now available before calling setUp()
prepare release
MongoDB test layers
MongoDB: quickfix for hostnames on linux, fixed replicaset-initialization
MongoDB: updated mongodb and pymongo versions, various other enhancements and cleanups