text cleanup
typo fix
missing word
Removed trailing comma
Fixed JSON
fixed markdown rendering issue (literal '<' are interpreted)
Merge branch 'master' into igalDruid
Merge branch 'master' into igalDruid
syntax and grammar fixes; tightened up language and flow
Fixed:

- Bad link for granularitySpec changed to real definition.
- All heads set to logical levels (consistent with all others).
- Fixed bad link in definition for spatialDimensions.
Merge branch 'master' into igalDruid
Merge pull request #432 from metamx/igalDruid

Igal druid
Merge
Merge pull request #434 from GuiSim/master

Small typo fixes in documentation
fix serialisation of segmentMetaDataQuery
Merge pull request #437 from metamx/segmentmetadataquery-fix

fix serialisation of segmentMetaDataQuery
prepare for next release
[maven-release-plugin] prepare release druid-0.6.73
[maven-release-plugin] prepare for next development iteration
fix typos