Release 1.7.0

Release 1.6.0_02 aka 1.7.0-rc2

Release 1.6.0_01 aka 1.7.0-rc1

Print warning instead of dying when delete_user called on non existin…

…g user

version bump to rc2

1.6.0-rc1

updated changelog. bump version to 1.5.0

updated changelog, 1.5.0-rc3

updated changelog, 1.5.0-rc2

upadted contributors