Bumped version to 10.0.0-alpha001.

Author: AndyButland

src/Directory.Build.props

@@ -1,9 +1,9 @@
 <Project>
   <PropertyGroup>
-    <Version>9.0.0</Version>
-    <AssemblyVersion>9.0.0</AssemblyVersion>
-    <InformationalVersion>9.0.0</InformationalVersion>
-    <FileVersion>9.0.0</FileVersion>
+    <Version>10.0.0</Version>
+    <AssemblyVersion>10.0.0</AssemblyVersion>
+    <InformationalVersion>10.0.0-alpha001</InformationalVersion>
+    <FileVersion>10.0.0</FileVersion>
     <LangVersion Condition="'$(LangVersion)' == ''">9.0</LangVersion>
     <NeutralLanguage>en-US</NeutralLanguage>
     <Company>Umbraco</Company>