Merge pull request #169 from wtangiit/master

start capturing stdout/stderr before cmd.start() for more msg
Update README.md
bugfix
Merge pull request #170 from wgerlach/master

bugfix
add workflow modules
Merge pull request #171 from wgerlach/master

add workflow modules
Merge pull request #172 from wtangiit/master

change PRINT_APP_MSG default to true
some fixes
Merge pull request #173 from wgerlach/master

some minor fixes