Version 1.5.0

Fixes #172

Release 1.4.5

Release 1.4.4

Release 1.4.2

nix-mode 1.4.1

nix-mode 1.4.0

Fix flycheck warnings

Some missing documentation...

Default to indent-relative

nix-indent-function is still not ready for default. Too many bugs with
let ... in and parameters. Help wanted! I don’t have enough Emacs
parsing knowledge to do this. Haskell is able to get good indentation
with a similar syntax to Nix, so I know it’s possible.

Fix byte-compile

looking-back needs two args

also v1.2.1 minor release

Fix package-lint complaints.