Aws-parallelcluster

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- bugfix:``cfncluster``: Fix abort due to undefinied logger

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- change:``cfncluster``: ``cfncluster stop``will terminate compute
instances, but not stop the master node.
- feature:``cfncluster``: CfnCluster no longer maintains a whitelist
of supported instance types, so new platforms are supported on day
of launch (including C5).
- bugfix:``cfncluster-cookbook``: Support for NVMe instance store
- updates:``ami``: Update all base AMIs to latest patch levels
- bugfix:``cfncluster-node``: Fixed long scaling times with SLURM

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- feature:``cfncluster``: Add support for r2.xlarge/t2.2xlarge,
x1.16xlarge, r4.*, f1.*, and i3.* instance types
- bugfix:``cfncluster``: Fix support for p2.2xlarge instance type
- feature:``cfncluster``: Add support for eu-west-2, us-east-2, and
ca-central-1 regions
- updates:``cfncluster-cookbook``: Updated to cfncluster-cookbook-1.3.2
- updates:``ami``: Update all base AMIs to latest patch levels
- updates:``cfncluster``: Moved to Apache 2.0 license
- updates:``cfncluster``: Support for Python 3

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- feature:``ami``: Added support for Ubuntu 16.04 LTS
- feature:``ami``: Added NVIDIA 361.42 driver
- feature:``ami``: Added CUDA 7.5
- feature:``cfncluster``: Added support for tags in cluster section in the config
- feature:``cfncluster``: Added support for stopping/starting a cluster
- bugfix:``cfncluster``: Setting DYNAMIC for placement group sanity check fixed
- bugfix:``cfncluster``: Support any type of script for pre/post install
- updates:``cfncluster-cookbook``: Updated to cfncluster-cookbook-1.3.0
- updates:``cfncluster``: Updated docs with more detailed CLI help
- updates:``cfncluster``: Updated docs with development environment setup
- updates:``ami``: Updated to Openlava 3.3.3
- updates:``ami``: Updated to Slurm 16-05-3-1
- updates:``ami``: Updated to Chef 12.13.30
- updates:``ami``: Update all base AMIs to latest patch levels

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- bugfix:``cfncluster-node``: Use strings in command for sqswatcher on Python 2.6
- updates:``ami``: Update all base AMIs to latest patch levels

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- bugfix:``cfncluster-node``: Correctly set slots per host for Openlava
- updates:``cfncluster-cookbook``: Updated to cfncluster-cookbook-1.2.0
- updates:``ami``: Updated to SGE 8.1.9
- updates:``ami``: Updated to Openlava 3.1.3
- updates:``ami``: Updated to Chef 12.8.1