Update package.json devDependencies (UglifyJS 2.5)

Bump grunt-contrib-copy ^0.8.1 -> ^0.8.2. While this is not entirely
necessary, do it anyway to keep our package.json up to date with latest
releases.

Bump grunt-contrib-uglify ^0.9.2 -> ^0.10.0. Updates UglifyJS dependency
from ^2.4.24 -> ^2.5. May result in better, smaller or less buggy
minified JavaScript, although this has not been tested.

If everything goes well, this commit doesn't change anything. Carets
will automatically update to latest major version. This commit just
means we are showing to drop support for some older versions, despite
package.json really instructing to download a newer release.

OK ewhal@

0 files changed, 0 insertions, 0 deletions