Allow format validators to be used on update
Add cache_dir to allowed paths
Update README.md

Fix Non-ActiveRecord object example in README.md.
Merge pull request #150 from samuelreh/master

Update README.md
Merge pull request #133 from greysteil/better-validations

Allow format validators to be used on update
replace be_true/be_false -> be true/be false
Remove deprecation warnings
Merge pull request #152 from hanachin/rspec3

Fixed specs for rspec 3
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