Merge pull request #5 from fanjam/master

Bump Text and Aeson version ceiling.
Version bump
Merge pull request #6 from adinapoli/issue-0.1.0.2

Version bump
Nix support
Lens deps needs to be bumped >= 4.5
Locking lens dep to 4.4 (it sucks)
ops
Merge pull request #7 from adinapoli/nix-support

Nix support
Bump wreq and lens.