Explain the files for contribution
Added contribution to readme
remove tabs
Added integer ranges
Merge branch 'master' into testing
Use new column range syntax
Default to standard out
Merge branch 'master' into testing
New style command-line args
Default to stdout properly
New inputs style for args
Merge branch 'master' into testing
Modified for new args
Modified for new args
stream not necessarily a file
More informative usage for inputs
More informative usage
Updating usage info
Merge remote-tracking branch 'origin/master'

Conflicts:
	README.md
Merge branch 'master' into testing