FemtoCleaner.jl needs help for updating to Julia 1.x syntax/features

Overall the project seems abandoned - no updates for a year, PRs are not getting merged and update to Julia 1.x needs your help. See more information at the Issues and Pull Requests repository pages. Would be nice if maintainers took a look at these. Tool is still quite useful, because there is still a lot of Julia 0.6 code out there.