slack: change directory before running

To help find the tokens file, mostly

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

slack/__init__.py

@@ -1,14 +1,17 @@
 #
 # Copyright 2015 (c) Anna Schumaker
 #
+import sys
+import os
+
+path = os.path.realpath(sys.argv[0])
+os.chdir(os.path.dirname(path))
+
 
 from . import api
 from . import auth
 from . import channels
 
-import sys
-
-
 
 #
 # Verify connection and setup team information.