WIP - trying to replicate UTF-8 error

fix spec

fixing encoding issue and another spec, to do with MR diffs

fix issue and spec failure

Add changelog and bumped up I/E version

fix spec based on feedback - omitted target project

added changelog

squashed - refactor to cope with sub sub N relations probably using the sub_relations method recursively.

added better error handling. Also refactored some of the code and fixed a few issues in project_tree_saver

refactored some namespace stuff and fixed project tree restorer spec. also removing controller so that it belongs to the UI MR