Does not implement specification

[austinhartzheim]

I found this package while searching the internet for semantic versioning packages. However, after looking at your code, I realized that your version comparison functions don't implement the necessary functionality to comply with the specification mentioned in your README file.

There are a few parts of the spec you don't seem to have implemented:

• Integral portions of the version need to be compared numerically. For example, v1.0.0-beta.2 is less than v1.0.0-beta.11/
• Pre-release versions should have lower precedence than release versions. For example, v1.0.0-rc.1 is less than v1.0.0.

The following tests can be added to your TestGreaterThan() function to represent the two points above:

{Version{1, 0, 0, "beta.2"}, Version{1, 0, 0, "beta.11"}, true},
{Version{1, 0, 0, "rc.1"}, Version{1, 0, 0, ""}, true},

[olliebun]

Thanks @austinhartzheim - I'll fix these up.