Fix language server cannot start if Julia was installed via juliaup

Disable the presence check of the Julia executable for now, because
shutil.which doesn't support symlinks on Python 3.3 on Windows.

Author: jwortmann

plugin.py

@@ -605,10 +605,15 @@ def server_version(cls) -> str:
 
     @classmethod
     def needs_update_or_installation(cls) -> bool:
-        if not shutil.which(cls.julia_exe()):
-            msg = ('The executable "{}" could not be found. Set up the path to the Julia executable by running the '
-                'command\n\n\tPreferences: LSP-julia Settings\n\nfrom the command palette.').format(cls.julia_exe())
-            raise RuntimeError(msg)
+        # The check for presence of the julia executable is disabled for now, because
+        # [`shutil.which`](https://docs.python.org/release/3.3.6/library/shutil.html#shutil.which) doesn't work with
+        # symlinks on Python 3.3 (on Windows at least), and if Julia was installed via juliaup it will create a symlink
+        # for it - see https://github.com/sublimelsp/LSP-julia/issues/24
+        #
+        # if not shutil.which(cls.julia_exe()):
+        #     msg = ('The executable "{}" could not be found. Set up the path to the Julia executable by running the '
+        #         'command\n\n\tPreferences: LSP-julia Settings\n\nfrom the command palette.').format(cls.julia_exe())
+        #     raise RuntimeError(msg)
         try:
             with open(cls.version_file(), "r") as fp:
                 return cls.server_version() != fp.read().strip()