Bsdploy

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- [feature] add fabric helpers to keep pkg up-to-date on the host, inside jails and for the bsdploy flavour
- [feature] add support for bootstrapping on Digital Ocean by setting `bootstrap` to `digitalocean` in the `ez-master` definition
- [fix] allow setting a non-default zfs root for ezjail by setting `jails_zfs_root` in the `ez-master` definition

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- [feature] enable jail_parallel_start in rc.conf of jail host
- [fix] import existing zpool in ``zpool`` ansible module if the name matches
- [fix] try to attach geli device first in ``zpool`` ansible module, in case it already exists, only if that fails create it from scratch
- [fix] properly handle multiple geli encrypted devices in ``zpool`` ansible module
- [fix] also honor the ``ploy_jail_host_pkg_repository`` variable during bootstrapping (not just jailhost configuration)
- [feature] files copied during bootstrap can be encrypted using the ``ploy vault`` commands. This is useful for the private ssh host keys in ``bootstrap-files``.
- [fix] fixed setting of virtualbox defaults, so they can be properly overwritten
- [feature] added new variables: ploy_jail_host_cloned_interfaces/ploy_jail_host_default_jail_interface to give more flexiblity around network interface setup
- [change] dropped support for Ansible versions < 1.8 (supports 1.8.x and 1.9.x now)
- [fix] honour proxy setting while installing ezjail itself, not just during ezjail's install run (thanks mzs114! https://github.com/ployground/bsdploy/pull/81)

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- [feature] add support for http proxies
- [change] deactivate pkg's *auto update* feature by default
- [feature] add support for `firstboot-freebsd-update <http://www.freshports.org/sysutils/firstboot-freebsd-update/>`_ (disabled by default)
- [change] [BACKWARDS INCOMPATIBLE] switched from ipfilter to pf - you must convert any existing ``ipnat_rules`` to the new ``pf_nat_rules``.
- [feature] provide defaults for VirtualBox instances (less boilerplate)
- [fix] set full /etc/ntp.conf instead of trying to fiddle with an existing one.
- [feature] Support configuration as non-root user (see https://github.com/ployground/bsdploy/issues/62)
- [change] switched to semantic versioning (see http://semver.org)

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- [deprecation] rsync_project is not working in all cases, print a warning
- [feature] added rsync helper, which is a tiny wrapper around the rsync command
- [fix] change format of /usr/local/etc/pkg/repos/FreeBSD.conf so the package
repository is properly recognized
- [change] use quarterly package repository everywhere

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- [feature] provide default and by-convention assignment of fabfiles
- [doc] document provisioning of EC2 instances
- [fix] fix string escapes for geli setup in rc.conf
- [feature] make sshd listen address configurable
- [fix] fix permission of periodic scripts in zfs_auto_snapshot role
- [doc] describe how to use a http proxy for mfsBSD

==================

- increase memory for virtual machines in documentation from 512MB to 1024MB
- fix escaping for jail settings in rc.conf preventing jails from starting