1.5.3

CHANGES:

• Support --block-sector-size (solo5 0.7.4) (#134 @hannesm @reynir)
• Invert communication between albatross-stats and albatross-daemon (#131 #133 @hannesm @reynir)
• Cleanups (avoid catch-all, remove migrate_name support, #130 @hannesm)
• Add minimal support for macOS (#128 @samoht)
• Upgrade to http-lwt-client 0.2.0 (#127 @hannesm)
• Remove unnecessary includes (#126 @reynir)