Comments typos fix.
Remove duplicated code.
Avoid unnecessary key_ field fetch.
junit support for gradle

Added junit support for gradle
gradle build will run minimal test cases and runs in 4 minutes
gradle jar will not run any test case
gradle junit will run all junit and takes about 30 minutes
Merge pull request #185 from arunthirupathi/gradleJunit

junit support for gradle, Will Merge in this commit and will apply the patch on the top from Szczepan.
Adding debug log messages for CoordinatorService
Adding debug log messages for CoordinatorService - adding review comments
fix problems in admin tool

1. fix bug in validating store names on nodes
2. rename some functions
3. use node id rather than node object in admin command functions
Releasing Voldemort 1.8.3
Added the ability to query a single store using AdminClient / admin tool
Addressing review comments for fetch_single_store
Fix the junit tests, bump sleep for bind issues

1) Merged the changes from Szczepan for fixing the Junit tests.
Previously JunitAll ran the integration tests and ran over 4 hours.
2) Szczepan removed redundant sourceSets, moved common configurations
to test block, created reports
3) Created aggregated reports for junitAll verified the coverage was
similar to before.
4) Noticed few bind exceptions on 2 ms sleep, so bumped them to 5 ms.
Merge pull request #190 from arunthirupathi/gradleJunit

Fix the junit tests, bump sleep for bind issues
Generate gradle wrapper to work with versions

Gradle version 1.12 is required for our gradle. But by default
most of us has only 1.4 . So the tasks will fail with compile
errors in these cases. Gradle provides a wrapper where it manages
the versions for us. Add task gradle wrapper and
it creates some files. These files can be checked into the
version control and people can run this command instead of gradle.
add check for SocketAndStreams in sendAndReceive
Fixing RESTClientFactory

   * close() method should shutdown transportClient cleanly in all use
     cases.
   * getStoreClient(storeName, resolver) should return a LazyStoreClient
Releasing Voldemort 1.8.4
Merge pull request #191 from arunthirupathi/gradleBuild

Generate gradle wrapper to work with versions
Added empty settings.gradle so that Gradle does not search for it in parent dirs.
Merge pull request #192 from szczepiq/master

Added empty settings.gradle so that Gradle does not search it in parent dirs.