Merge pull request #1 from safaci2000/master

Removing DS_Store files
[maven-release-plugin] prepare release hecuba-client-0.0.45
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release hecuba-client-0.0.46
[maven-release-plugin] prepare for next development iteration
Fixing Markdown links in README.md
Merge pull request #2 from safaci2000/master

Introducing contribution documentation.
Expire secondary index if column expires
	- If a TTL is set on a column and that column also have a secondary index, then TTL should also be set on that secondary index entry.
Merge pull request #4 from ankursinghal/master

Expire secondary index if column expires