Implement hot deployment for V2 cartridges

Use the same hot_deploy_enabled marker mechanism used in V1.

Trello: https://trello.com/c/zYsU888C online_runtime_244
Fix for bug 953673
 - Fixing gear move within the same district when target server is not specified
Resolve fqdn to uuid when reporting frontend issues and check the selinux context of mcollective.
Adding install and post setup steps
install and post setup tests
Add jenkins support for 2.7/3.3
Bug 954283 - JBoss standalone.conf sourcing env vars

* jbossas
* jbosseap
Merge pull request #2188 from ironcladlou/dev/v2carts/hot-deploy

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Merge pull request #2158 from abhgupta/bug_953673

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Merge pull request #2189 from rmillner/accept-node

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Merge pull request #2187 from danmcp/master

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implementing install and post-install
HAProxy cleanup.
Merge pull request #2192 from mrunalp/bugs/952660

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Merge pull request #2191 from jwhonce/wip/raw_envvar

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WIP: test mysql in scalable app
Merge pull request #2193 from danmcp/master

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Merge pull request #2194 from mrunalp/dev/haproxy_cleanup

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Merge pull request #2196 from pmorie/dev/v2_mysql

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more install/post-install scripts