Add vagrant-bindfs for custom NFS permissions

Resolves #82
Merge pull request #83 from fullyint/bindfs

Add vagrant-bindfs for custom NFS permissions
Add checks for vagrant-bindfs & windows

Discussion in #83. Resolves #85.
Merge pull request #86 from fullyint/plugin-check

Add checks for vagrant-bindfs & windows
Changes MariaDB mirror to digital ocean

ref https://github.com/roots/bedrock-ansible/issues/90
Merge pull request #91 from austinpray/master

Changes MariaDB mirror to digital ocean
Use server-configs-nginx 1.0.0

closes https://github.com/roots/bedrock-ansible/issues/89
Merge pull request #92 from austinpray/master

Use server-configs-nginx 1.0.0
Add variable for MariaDB dist

No specific dist release of MariaDB exists for Ubuntu 14.10 Utopic yet
so we'll introduce a variable set to Trusty by default for now.
Merge pull request #94 from roots/mariadb-source-use-trusty

Add variable for MariaDB dist
Remove naming restriction on bedrock path

details in #96
Merge pull request #97 from fullyint/bedrock-path

Remove naming restriction on bedrock path
Added better ssh defaults, added fail2ban, ferm for added security.
Merge pull request #58 from FightTheCurrent/feature/security

Feature/security
Bump Ansible requirement to 1.6

debconf module is used in ferm role which does not exist until 1.6
Nginx: update pid path

Ubuntu 14.04 changed this path. This fixes problems with nginx's init.d
script and using `service nginx`.