Minor fixes in README.md

* Change 'if' to 'it'.
* Remove unnecessary 'be'.
Fixed broken upstart script.
Ensure container login shell has envdir vars injected, and also that the home directory is updated /app/src.
The install scripts now use the recommended `zfs-fuse` package instead of `zfs-native/stable` ppa.
HAProxy config generator fix: don't add any ACL when the list of domains is empty.
Added retry to local container destroy for zfs fs.
build and deploy scripts updated to use fast dependency management by default, force update flag is '-u' or '--update'.
Installation update: Ensure zfs snapshot listing is enabled for the created pool.
Partial progress on support for zfs-fuse, which is flaky about destroying datasets (retries are frequently required).
Add python-imaging to package list for base python image.  The package is required for the PIL library to support a full range of image types.
Fix for incorrect home directory path set in container /etc/passwd file.
Merge branch 'master' of github.com:Sendhub/shipbuilder into jay/zfs-fuse-support
Correct Typo
Correct Typo
Merge pull request #5 from ecoleman/patch-1

Correct a minor typo
Merge branch 'master' of github.com:Sendhub/shipbuilder into jay/zfs-fuse-support
zfs-fuse failure tolerance in destroy.py script.
Quote test subject in build.sh.
Removed excessive logging from old dyno cleanup task.
Version number is now optional in rollback command - by default it will rollback to the previous release.