Deprecation Warning from tr46 Package Related to punycode Module

[santuman]

Issue

Upon running my node application with --trace-deprecation arg warning is tracked back to tr46 package.

Warning message is as below:
(node:18804) [DEP0040] DeprecationWarning: The punycode module is deprecated. Please use a userland alternative instead.

[mcollina]

Thanks for reporting! Would you like to send a Pull Request to address this issue?

[santuman]

Sure bumping up mongodb version should fix the issue.

[santuman]

#160