Previously the case compare was looking for a non zero result which meant even
if a debug file was specified, it still used STDOUT.  This commit now correctly
identifies when a user enters stdout as the debug destination.

…ervers

This commit adds smoke integration tests for both the TCP and STDIO variants of
the Puppet Language Server.

Previously commit 3690ca2 the Socket connection object was modified for the
STDIO server.  However this was causing issues and was not required.  This
commit partially reverts the changes in 3690ca2 to the TCP Server and
JSON Handler to the parent commit.

Previously older ruby versions with older Puppet gems would emit a warning about
Fiddler and DL on STDOUT.  This would confuse a STDIO Client as it pollutes
STDOUT with non JSON compliant text.  This commit suppresses verbose error
messages during the gem require statements.