Merge branch 'release/0.3.28' into develop
Add metadata.json to .gitignore
Fix indents and code style of initscript template
Increment PORT when it is provided and preserve the new value in the initscript
Add port attribute for testing
Fix references to port in environment_attributes
Upgrade test harness cookbook and dependencies
Use env to provide environment variables to initscripts
Refactor monitrc to use some local variables
Release 0.3.29

Look for PORT environment variable and increment it for multiple processes
Merge branch 'release/0.3.29'