chown deployment is recursive now

As setfacl is recursive i would suggest making chown recursive as well.
Custom backup path
Merge pull request #398 from tiagojsag/custom_backup_path

Custom backup path
Fix :update_assets_version usage with SVN

When used with Subversion real_revision is Fixnum so this code fails with:

    wrong number of arguments (2 for 1) (ArgumentError)

This patch fixes it.
Merge pull request #400 from rekky/patch-1

Fix :update_assets_version usage with SVN
Merge pull request #401 from hco/patch-1

chown deployment is recursive now
Update capifony.gemspec due to release of capistrano 2.15.5

There is a new version of capistrano (2.15.5) and this dependency definition is wrong now.
Merge pull request #403 from tiraeth/master

Update capifony.gemspec due to release of capistrano 2.15.5
Use symfony_env_* variables to tail logs

Right now the log tail is hardcoded to prod.log and dev.log, which is not always the desired behaviour. Using the symfony_env_* variables seems more appropiate
Merge pull request #405 from acasademont/patch-1

Use symfony_env_* variables to tail logs
Prepare 2.3.0 release
Bump version to 2.3.1.dev