fix paper some
lots of updates to paper
minor fixes to paper
fix cluster image
remove unneeded paper files
fix diagram problem
Minor fixes and documentation changes
Merge pull request #314 from metamx/igalDruid

Updates to Documentation to improve concepts and update small bugs in the segment flow
Merge pull request #318 from metamx/minor-fixes

Minor fixes and documentation changes
added title; minor typo fixes
added title; fixed link to configuration
refactored sidebar sections to group related topics together under a section that encompasses what they are about, and communicates to a user that this is the go-to section for provisioning/deploying etc. a druid cluster
Refactored modules section for better flow/readability and added link to extending druid
added title