Fixing a javadoc issue on jdk6
Changing the Lucene/Solr depenendency to be 4.4
Bumped the version from 0.5.1 to 0.6.0.
Updated release notes for 0.6.0.
[maven-release-plugin] prepare release release-0.6.0
[maven-release-plugin] prepare for next development iteration
Update jdiff files.
CDH-13738 Add tika-xmp as runtime dependency to cdk-morphline-solr-cell
remove unnecessary sample
Updating documentation link in README.md to 0.6.0.

The nightly doc link brings up 0.2.0.
Merge branch 'master' of https://github.com/cloudera/cdk
add Morphline Lily HBase Indexer to docs, plus various other doc enhancements
add Morphline Lily HBase Indexer to docs
Update data module documentation link to current (latest) release.
add testcase for grok command with email
bit more doc
sync grok dictionaries with logstash-1.1.13
CDK-103: Add toByteArray morphline command
CDK-103: Add toByteArray morphline command
CDK-93 Add links for cdk-morphlines-saxon and cdk-morphlines-json to dependency page