WIP - DO NOT MERGE - Adds fat jars to bundle creation

[huntc]

I'm not sure about seeing this merged. The general idea though is that we create a fat jar for our bundles so that they are ps friendly. We use sbt-assembly in conjunction with the native packager.

The problem is that Play (at least), has merge conflicts. This should indeed be fixed separately as they could be bugs. For example:

[error] (*:assembly) deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/io.netty/netty-buffer/jars/netty-buffer-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /Users/huntc/.ivy2/cache/io.netty/netty-common/jars/netty-common-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /Users/huntc/.ivy2/cache/io.netty/netty-codec-http/jars/netty-codec-http-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /Users/huntc/.ivy2/cache/io.netty/netty-codec/jars/netty-codec-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /Users/huntc/.ivy2/cache/io.netty/netty-transport/jars/netty-transport-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /Users/huntc/.ivy2/cache/io.netty/netty-handler/jars/netty-handler-4.0.42.Final.jar:META-INF/io.netty.versions.properties
[error] /Users/huntc/.ivy2/cache/io.netty/netty-transport-native-epoll/jars/netty-transport-native-epoll-4.0.42.Final-linux-x86_64.jar:META-INF/io.netty.versions.properties
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/org.slf4j/jcl-over-slf4j/jars/jcl-over-slf4j-1.7.21.jar:org/apache/commons/logging/Log.class
[error] /Users/huntc/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.2.jar:org/apache/commons/logging/Log.class
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/org.slf4j/jcl-over-slf4j/jars/jcl-over-slf4j-1.7.21.jar:org/apache/commons/logging/LogConfigurationException.class
[error] /Users/huntc/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.2.jar:org/apache/commons/logging/LogConfigurationException.class
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/org.slf4j/jcl-over-slf4j/jars/jcl-over-slf4j-1.7.21.jar:org/apache/commons/logging/LogFactory.class
[error] /Users/huntc/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.2.jar:org/apache/commons/logging/LogFactory.class
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/org.slf4j/jcl-over-slf4j/jars/jcl-over-slf4j-1.7.21.jar:org/apache/commons/logging/impl/NoOpLog.class
[error] /Users/huntc/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.2.jar:org/apache/commons/logging/impl/NoOpLog.class
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/org.slf4j/jcl-over-slf4j/jars/jcl-over-slf4j-1.7.21.jar:org/apache/commons/logging/impl/SimpleLog$1.class
[error] /Users/huntc/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.2.jar:org/apache/commons/logging/impl/SimpleLog$1.class
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/org.slf4j/jcl-over-slf4j/jars/jcl-over-slf4j-1.7.21.jar:org/apache/commons/logging/impl/SimpleLog.class
[error] /Users/huntc/.ivy2/cache/commons-logging/commons-logging/jars/commons-logging-1.2.jar:org/apache/commons/logging/impl/SimpleLog.class
[error] deduplicate: different file contents found in the following:
[error] /Users/huntc/.ivy2/cache/com.typesafe.conductr/play25-conductr-bundle-lib_2.11/jars/play25-conductr-bundle-lib_2.11-1.6.1.jar:play/reference-overrides.conf
[error] /Users/huntc/.ivy2/cache/com.typesafe.play/play_2.11/jars/play_2.11-2.5.12.jar:play/reference-overrides.conf

cc. @gmethvin

[typesafe-tools]

Fat jars for bundles

[huntc]

Not implementing