REST-149. Create skeleton packaging for KijiREST.

Create a skeleton package for KijiREST that contains the conf, bin/ etc with the
lib/ folder being populated later in the assembly process by any downstream
consumers. This allows for late binding of jars such as hbase, cassandra, hadoop
etc.

Review: https://review.kiji.org/r/2112/
Reviewer: taton
REST-152. Fix minor errors in documentation for load testing

issue: https://jira.kiji.org/browse/REST-152
review: https://review.kiji.org/r/2124
REST-150. Add the slf4j-api and order the classpath deterministically.

Add the slf4j-api in the pom and change the way the classpath is constructed so
that it's a deterministic order of libs specified in the lib/ dir of KijiREST.

Review: https://review.kiji.org/r/2120/
Reviewer: lsheng
Update to use CDH 5.0.3 as default dependencies in the main poms.
Strip whitespace
Remove the version range here.
Add explicit versions to hadoop and hbase.
Fix conflicts from upstream.
Updated the poms to reflect the latest cdh4/5 changes.
Fix CDH5 issues.