Fixes exception java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: builds/eip/code-measures/.git/logs/refs/remotes/origin/?untars?
For some reason non-ascii characters are not encoded properly on the worker docker container. In this fix, non-ascii characters are URL escaped.
Also fixes various CPM-related bugs.
Closes #212 (closed), #213 (closed), #214 (closed)
To be filled in by the reviewers