pom changes required for distribution on the sonatype nexus snapshot repo
build sources-jar and javadoc-jar during package phase.
Remove local repositories and set the cassaandra-maven-plugin version to be 1.1.0-1.

The reason is that it is hard/impossible to get these dependencies up on maven central, and ends up making the project less "pure" in maven terms.

See https://docs.sonatype.org/display/Repository/Sonatype+OSS+Maven+Repository+Usage+Guide#SonatypeOSSMavenRepositoryUsageGuide-6.CentralSyncRequirement (search for 'discourage').
include some sonatype stuff in the pom.
do not include blueflood-all by default (we don't want to upload it during a deploy)
- refactored selectStats into its own enum class.
Merge pull request #85 from ratanasv/refactor-stats-into-enum

Refactor stats into its own enum class
Refactor code in preparation for pre-rolled metrics support
Unit tests changes
Integration tests changes
Rename variables as per PR comments
Merge pull request #89 from lakshmi-kannan/bf_refactor_for_various_rollups

WIP: Refactor code in preparation for pre-rolled metrics support
Main changes for supporting arbitrary rollups
Introduce base class Rollup and BasicRollup class for default stats rollup
Unit test changes
Integration test changes
Make Reader return Points instead of List<Object>
Change tests to use Points instead of List<Object>
Revert rename of yammer metric names
Tiny: rename variable