Make the commit count the last part of the version number

Author: shana

package.sh

@@ -61,7 +61,7 @@ rm -f unity/PackageProject/Assets/Plugins/GitHub/Editor/*.xml
 Version=`sed -En 's,.*Version = "(.*)".*,\1,p' common/SolutionInfo.cs`
 commitcount=`git rev-list  --count HEAD`
 commit=`git log -n1 --pretty=format:%h`
-Version="${Version}-${commitcount}-${commit}"
+Version="${Version}.${commitcount}-${commit}"
 Version=$Version
 export GITHUB_UNITY_DISABLE=1
 "$Unity" -batchmode -projectPath "`pwd`/unity/PackageProject" -exportPackage Assets/Plugins/GitHub/Editor github-for-unity-$Version.unitypackage -force-free -quit