fix the index task and more docs
fix small bug with unusable dims
another attempt at index task
Merge pull request #357 from metamx/igalDruid

Igal druid
more exceptions
Merge pull request #355 from metamx/fix_index_task

Fix the index task and more docs
fix typo
update emitter version
RemoteTaskRunner: Fix NPE on cleanup due to missing withWorker
TaskStorage.add() now throws TaskExistsException, and the servlet respects it

The servlet will throw 400 rather than 500 when a task already exists, to
signify that the request has no hope of ever working.
Merge pull request #358 from metamx/index-service-bugs

Index service bugs
a whole bunch of docs and fixes
Merge branch 'master' of github.com:metamx/druid
prepare for next release
[maven-release-plugin] prepare release druid-0.6.48
[maven-release-plugin] prepare for next development iteration
make ServerTimeRejectionPolicy also reject timestamps AHEAD of server time
Merge pull request #360 from liquidm/fix_future_timestamps

make ServerTimeRejectionPolicy also reject timestamps AHEAD of server time
prepare for next release
Merge branch 'master' of github.com:metamx/druid