text cleanup
typo fix
missing word
Removed trailing comma
Fixed JSON
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
Merge branch 'master' of github.com:metamx/druid into better-context