v1.0.3

Fixes an issue with build dependencies being listed as runtime dependencies.

v1.0.2

Move from `.app.src` to `PROJECT_*` Makefile variables

This is recommended by Erlang.mk user guide and we can do it because
there is no application env variables for this plugin.

This allows to specify the plugin version from the command line:
    make PROJECT_VERSION=1.0.0

1.0.1

Targets RabbitMQ 3.5.7.