Add support for an optional fourth number (x.y.z.W)
Add revision support to custom NEXT string
More PEP8 compliance
Minor update to README.md
Update error message to include the optional revision
Reword help, normalize casing, help made more clear
Fix grammar in command line help strings
Minor refactoring
Reorganize condition
Add whole lot of missing comments
Update README.md
Minor README.md enhancement
Merge branch 'revision-support'
More PEP8 compliance