removes timeout in lua of configuring it on the sqs queue itself
ignoring produced artifacts
removes old intersect approach
adds a getter for the set of tiles intersection cares about
asking all commands to take peripherals to allow for easier mocking
simplifying args
add redis index to peripherals
intersecting outside of redis
pulling out unused methods
removes tilequeue_read
removes generate_tile
removes return and fixes access to peripherals
fill redis set with values of integer type
hiding work of intersecting in redis cache
making redis cache return a generator for tiles that should be enqueued
Merge pull request #7 from mapzen/baldur/misc

Baldur/misc
Use fewer sql statements to format tiles
Execute all sql simultaneously with thread pool
Perform filtering outside of threads
Pool postgresql connections