untangle includes
disable checking for empty data sets to make tests pass in debug mode, #889
use double precision fp math for mercartor projection and point-line projections (for now), fixes #1191
add barrier checkpoint to the white list of passable tags
fix test on 'some' Intel FPU
enable partitioning on LTO, good riddance GCC 4.7
move springclean functionality in its own tools, remove from datastore
use osrm-database during testing
adjust datastore testing
disable failing test