* Updates to build.sh.
Allow building entire solution if mono is available on the box.
Initial version of test.sh script.
* Update version to 15.1.0 for build.
* Fix unbound variable for packages directory.
* Fix condition for checking presence of mono.
Package TestHost in CLI nuget package if mono is available and net46 binaries are built.
Fix an issue with CLI nupkg, where an empty folder was getting created in the nupkg.
* Override json.net in coreclr package directory.
* Download netcoreapp1.0 shared runtime.
Amaury Levé
Arun Mahapatra