Parse warnings/errors

[carlin-q-scott]

The Exec task supports regular expressions for finding error/warning lines in the console output. If you set these up, those erros/warnings appear in the error list window like all other build errors. Here's how I have it set up in my project.

NPM

<Exec ...
      CustomErrorRegularExpression="^npm ERR!"
      CustomWarningRegularExpression="^npm WARN"
/>

Grunt

<Exec ...
      CustomErrorRegularExpression="^Error"
      CustomWarningRegularExpression="^Warning"
/>