React to renaming "k-crossgen.cmd" to "dnx-crossgen.cmd"

Author: ChengTian

src/dnvm.ps1

@@ -86,7 +86,7 @@ Set-Variable -Option Constant "OldUserDirectoryNames" @(".kre", ".k")
 Set-Variable -Option Constant "RuntimePackageName" "dnx"
 Set-Variable -Option Constant "DefaultFeed" "https://www.nuget.org/api/v2"
 Set-Variable -Option Constant "DefaultUnstableFeed" "https://www.myget.org/F/aspnetvnext/api/v2"
-Set-Variable -Option Constant "CrossGenCommand" "k-crossgen"
+Set-Variable -Option Constant "CrossGenCommand" "dnx-crossgen"
 Set-Variable -Option Constant "CommandPrefix" "dnvm-"
 Set-Variable -Option Constant "DefaultArchitecture" "x86"
 Set-Variable -Option Constant "DefaultRuntime" "clr"

test/ps1/_Common.ps1

@@ -5,7 +5,7 @@ Set-Variable -Option Constant "RuntimeFolderName" ".dnx"
 Set-Variable -Option Constant "CommandName" "dnvm"
 Set-Variable -Option Constant "VersionManagerName" ".NET Version Manager"
 Set-Variable -Option Constant "DefaultFeed" "https://www.myget.org/F/aspnetvnext/api/v2"
-Set-Variable -Option Constant "CrossGenCommand" "k-crossgen"
+Set-Variable -Option Constant "CrossGenCommand" "dnx-crossgen"
 Set-Variable -Option Constant "HomeEnvVar" "DNX_HOME"
 Set-Variable -Option Constant "UserHomeEnvVar" "DNX_USER_HOME"
 Set-Variable -Option Constant "FeedEnvVar" "DNX_FEED"