Consistent logging in the API to better log exceptions

With this patch we log the actual message of an exception instead of its
str() representation. This allows for consistent error logging in the
API.

Fixes bug: #1224646

Change-Id: I3965bffb1c2c2eee0af440d1ecd30ccb3bb958d5
Docs for building heat-cfntools images with diskimage-builder

Change-Id: I5ec805f8800a48b798700532551f0414fc6f6be0
Document neutron vpn service properties

This adds descriptions to the properties of:
* OS::Neutron::VPNService
* OS::Neutron::IPsecSiteConnection
* OS::Neutron::IKEPolicy
* OS::Neutron::IPsecPolicy
as well as gettext wrapping for the attributes description

Change-Id: I3312cfbeeccee925e6b06b7ac061be16997bdd34
Closes-Bug: #1224182
Remove broken tripleo links from on_devstack doc

The links referenced in the doc no longer work

Change-Id: I0cd5f4580998457d00231a513e9328ca2e5b314c
Document autoscaling resource properties

Adds descriptions to the properties of:
* AWS::AutoScaling::LaunchConfiguration
* AWS::AutoScaling::AutoScalingGroup
* AWS::AutoScaling::ScalingPolicy
* OS::Heat::InstanceGroup
and wraps attribute descriptions with gettext _(

Change-Id: Ie825c2b122a6c2ce8ff83f9beb9f98487aaa8d54
Closes-Bug: #1224131
Document instance resource properties

Adds descriptions to the properties of:
* AWS::EC2::Instance
* OS::Heat::HARestarter
and wraps attribute descriptions with gettext _(

Change-Id: I772de4777ba21f2952a725da0c7fbd72f7d78820
Closes-bug: #1224139
Use built-in print() instead of print statement

In python 3 print statement is not supported, so we should use
only print() functions.

Fixes bug 1226943

Change-Id: If88d77982ddbd1eb47265f15a27b747cd8011e76
Add 'repeat_actions' property for OS::Ceilometer::Alarm

The default value is maintained : repeat_actions=False
Require python-ceilometerclient>=1.0.3

Fixes bug #1223347

Change-Id: I010b6555311e9e34b095d9216cf1c5873e244cc4
Merge "Consistent logging in the API to better log exceptions"
Merge "Add 'repeat_actions' property for OS::Ceilometer::Alarm"
Merge "Document autoscaling resource properties"
Merge "Docs for building heat-cfntools images with diskimage-builder"
Merge "Document neutron vpn service properties"
Merge "Remove broken tripleo links from on_devstack doc"
make get_flavor_id to work if input is flavor id

Current implementation of get_flavor_id throws exception if input
value is a flavor id. This method is used in couple of resources
where input flavor could be flavor id. This change is to avoid
throwing exception if the input is flavor id.

Fixes bug #1227255

Change-Id: I11054d5f3a34a7e2afea140f8f37a21cb8eba419
Merge "Use built-in print() instead of print statement"
Merge "make get_flavor_id to work if input is flavor id"
Merge "Document instance resource properties"