Fixed issue with temp files crashing precompiler

[paton]

Added a simple check to block temp files from accidentally being sent into processTemplate(), which crashes the process.

[nicjansma]

Hi paton,

I realize this is a year old but I'd be interested in merging it. Is there a reason you removed several console.log()s?

[paton]

I think it's generally best practice for node modules not to output things to the console.

Console.log()s might be useful for debugging purposes, though. Maybe the 4th argument on watchDir can be debug which, if true, allows the console.logs

exports.watchDir = function(dir, outfile, extensions, debug) {

[nicjansma]

I would agree, or at least make the output optional. As you've noted, there's another pull request that is making the console.logs optional which is great.

For the purposes of this PR, would you want to revert the console.log() changes and have it just do the temp file fix?

[nicjansma]

Merged your fix into 16a3f4d