Add a task to install paver requirements.
Merge pull request #1001 from edx/jarv/add-paver-to-release-branch

Add a task to install paver requirements.
removing npm
fixing pypi mirror
Merge pull request #1003 from edx/han/fix-travis

removing npm
Merge pull request #1004 from edx/jarv/add-paver-to-release-branch

fixing pypi mirror
disabling /vagrant sync'd folder
moving extra vars back to the plays
not mounting /vagrant for release
Adding Vagrant.require_version >=1.5.3
Adding vb-guest as required plugin
Merge pull request #1022 from edx/han/rc-injera

Adding Vagrant.require_version >=1.5.3
vagrant.require_plugin is deprecated
updating AMI for the injera release
Merge branch 'jarv/rc-injera' of github.com:edx/configuration into jarv/rc-injera
Merge pull request #1023 from edx/jarv/rc-injera

Jarv/rc injera
Merge pull request #1025 from edx/release

Release