yeoman/grunt-usemin — pull request #461 by jubalm (2014-10-23 05:58:42+00:00)
Title: Fix ability to add custom patterns

Adding patterns completely replaces the patterns in fileprocessor, where it could be more useful if the pattern is appended instead.
```
usemin: {
html: [],
css: [],
options: {
assetsDirs: [],
patterns: {
html: [
[/]*[^\>\S]+ng-src=['"]([^"']+)["']/gm, 'Update the ng-src to reference our revved images']
]
}
}
},
```