Simple application command handling.
Implement external process starting and output processing.
Merge branch 'master' into shellexecute
Small clean up.
Implement PATH searching.
Fast release GUI programs, redirect input.
Merge remote-tracking branch 'refs/remotes/origin/master' into shellexecute
Test simplest shell execution case.
Merge remote-tracking branch 'refs/remotes/origin/master' into shellexecute
Small refactoring. Ignore path extension case.
Add tests for relative and environment paths.
Add ignored test.
writeSideEffectsToPipeLine flag used.
Fix tests.
Merge pull request #121 from ForNeVeR/shellexecute

Shell command execution