Remove previously generated beams before installing new ones
Report correct location if local.hex failed
Add copy_path! instead of read_path!(..., file: ...)
Test the way System.cmd finds for executables
Change implementation of System.cmd to match the docs
Merge pull request #2789 from alco/system-cmd-path-resolution

System.cmd path resolution
Do not pass false into port command
Merge pull request #2782 from pedrosnk/master

Remove previously generated beams before installing new ones
Merge pull request #2787 from elixir-lang/emj-hex-file-error

Report correct location if local.hex failed
Move printing out of copy_path, always create dir
Merge branch 'master' of https://github.com/elixir-lang/elixir