0.1.6

What's Changed

• Avoid calling setenv with identical previous contents. by @Blub in #27
• Security: reduce paths inspected on common OSes by @ctz in #31
• Add some basic CI and metadata by @alexcrichton in #32
• Deprecate env-var-writing functions by @alexcrichton in #33
• Go ahead and publish &Path iterator function by @alexcrichton in #34
• Bump to 0.1.6 by @alexcrichton in #35