Override compilerOpts in the target

[vogdb]

Hi! It would be nice to have a possibility to override compilerOpts in the target. In my project I build several files. They all use different extern files. That is why this feature is important to me.

I've made a draft implementation for 'closureCompiler' task here vogdb/grunt-closure-tools@f30472d84cd670eae604c18d91ee094021febd40 If this implementation is OK I can do it for other tasks.

[thanpolas]

@vogdb is this issue what you are talking about? gruntjs/grunt#738

[vogdb]

Yeah. I didn't know about it. Should I close this issue or wait until grunt will be updated?

[thanpolas]

I'm curious how your solution works, can you make a gist with how your conf looks like after that patch?

[vogdb]

OK https://gist.github.com/vogdb/5407529

[thanpolas]

aha! that's interesting. @vogdb we can have this as an interim solution until Grunt supports it.

Would you care to submit a PR?

Please also update the README and CHANGELOG, make sure docs reflect the temporary nature of this configuration option

[vogdb]

OK.