riga/law: v0.1.5

Features and improvements Update docker images. (04d96f5e) Minor update to hadd task in root contrib. (ebeb08a5) Safe yaml loading (#111, @harrypuuter) Remove unused parameter job_ids (#110, @meliache) Make job manager and file factory classes configurable in remote workflows. (06d8902e) Add additional hook to modify task parameters before instantiation. (09eee5e5) Use new logger class across law. (be1f595c) Add custom logger class with *_once() methods. (ec76a89c) Add option to use unexpanded paths in file target repr. (e4bc244b) Add 'return_all' to targets uri(). (06f3283c) Rename get and put functions in contrib wlcg tools. (9c90b700) Implement mkdir_rec in gfal file interface. (c0fce22b) Colorize messages of warning and error logs. (9e488ce6) Fixes Fix bash stderr pipes. (65f523a5) Catch special cases in gfal file interface for gsiftp protocol. (bed428f9) (Minor) breaking changes Make FileSystemTarget.stat a method rather than a property. (e992b9cd