tschaub/grunt-newer — pull request #36 by kfiku (2014-03-03 12:07:17+00:00)
Title: Ability to not overwrite config of a task

I Propose to add the ability to not overwrite config of a task.
There are a tasks like `grunticon` witch need original config (with all files) to work right - so `grunt-newer` will run full task if any file will change.
To ignore changing config (line 120) need to add in never task options `changeConfig: false`.
You can specify `changeConfig` to all task, or to single taks:
```
newer: {
options: {
cache: 'app/cache/grunt',
changeConfig: false
}
}
```
or
```
newer: {
options: {
cache: 'app/cache/grunt',
grunticon: {
changeConfig: false
}
}
}
```