Display osgearth version
osgearth_version \kx [--caps | --major-number | --minor-number | --patch-number | --so-number | --version-number]
osgearth_version displays the current version of osgEarth.
\*(T<--caps\*(T>
Print out system capabilities
\*(T<--major-number\*(T>
Print out major version number only
\*(T<--minor-number\*(T>
Print out minor version number only
\*(T<--patch-number\*(T>
Print out patch version number only
\*(T<--so-number\*(T>
Print out shared object version number only
\*(T<--version-number\*(T>
Print out version number only