zsh 5.0.7 released

Version 5.0.7 of zsh is released. This is a stable
release. There are minor new features as well as bug fixes since 5.0.6.

Note in particular there is a security fix to disallow evaluation of the
initial values of integer variables imported from the environment (they
are instead treated as literal numbers). That could allow local
privilege escalation, under some specific and atypical conditions where
zsh is being invoked in privilege elevation contexts when the
environment has not been properly sanitized, such as when zsh is invoked
by sudo on systems where "env_reset" has been disabled.