Certain special characters in MySQL database password causing problem (sails-mysql adapter)

**Sails version**: 1.0.0
**Node version**: 8.11.0
**NPM version**: 5.6.0
**DB adapter name**: sails-mysql
**DB adapter version**: 1.0.0.-17
**Operating system**: Debian 9

Passwords starting with an exclamation mark cause the database connection to fail. This was already mentioned in Issue #4204 but the issue is closed without a resolution. In my opinion special characters should work in passwords, no matter if there at the beginning or not.

*Steps to reproduce:*

Use sails-mysql and set up a datastore with a password something like "!!xyz123". Try to lift the app with sails lift

Start by reproducing the failure in a Sails app using the sails-mysql adapter and a datastore password beginning with !, then trace the connection path used by `sails lift`. Done means the app lifts successfully with that password; the issue names no file or test to run.

Written by the indexing model from the issue text.