fixing url escaping bug with an ugly decoding hack
Remove decoding of urls which have been already been properly decoded by
carrierwave.
Use the Carrierwave generated url for the direct_fog_url(:with_path => true)
The current implmentation has issues while Carrierwave already has a
working solution.
This also make direct_fog_url work with private storage on S3
Merge remote-tracking branch 'p8/master' (fixes URL generation with
special characters)

Conflicts:
	lib/carrierwave_direct/uploader.rb
Merge branch 'master' of https://github.com/tsnieman/carrierwave_direct