New task : Rebuild slugs

[jehanbruggeman]

I wrote a new task to address a specific use case : having massively re-organized the website structure prior to public release, I wanted the slugs to reflect that new structure (since no URIs had been made public, there were none to break), so I created a task very similar to the apostrophe:repair-tree task, called apostrophe:rebuild-slugs, which browses the tree and rebuilds the slug paths as it goes.

The code is provided as a patch (see attachment). The paths are relative to the svn.apostrophe.org root. I hope it is adequate, being the first patch I ever made.

[jehanbruggeman]

Sorry, I didn't pay attention to the label : it was referring to the symfony version.