Add warning message for invalid compileWait parameter value

[TrevCraw]

There is no warning message for invalid compileWait parameter values like there is for serverStartTimeout and verifyAppStartTimeout.

For example: The serverStartTimeout value needs to be an integer greater than or equal to 0. The default value of 30 seconds will be used.

There should be a warning like the one above before compilation starts, or there should be a check on the value at the start of dev mode. This applies for both gradle and maven plugins.