Bump version number to 0.2. (dotnet#95)

We've shipped 0.1.0, we should start producing higher versions now.

Fix dotnet#85

Author: eerhardt

build/BranchInfo.props

@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup>
     <MajorVersion>0</MajorVersion>
-    <MinorVersion>1</MinorVersion>
+    <MinorVersion>2</MinorVersion>
     <PatchVersion>0</PatchVersion>
     <PreReleaseLabel>preview</PreReleaseLabel>
   </PropertyGroup>