nix: use shallow-fetchgit and make put-metric a static binary
nix: update filters
nix: new derivation: put-metric (doesn't drag ghc in)
missing bootstrap/
make put-metric -static too
update aws to 0.9.4 so that it can use newer conduit
Merge pull request #6 from zalora/bump-aws

update aws to 0.9.4 so that it can use newer conduit
Add USE_TH-macro for supporting ghc7.6