Development plugin path

When libsaria.__dev__ is True, we should use a different path for
plugins.

libsaria/path.py

@@ -1,5 +1,6 @@
 # Bryan Schumaker (8/7/2010)
 
+import libsaria
 import os
 
 exists   = os.path.exists
@@ -40,7 +41,10 @@ def plugin_dir_once():
 	global p_dir
 	global saria_dir
 	saria = saria_dir()
-	p_dir = join(saria, "plugins")
+	dir = "plugins"
+	if libsaria.__dev__ == True:
+		dir += "-dev"
+	p_dir = join(saria, dir)
 	if exists(p_dir) == False:
 		mkdir(p_dir)
 	plugin_dir = plugin_dir_rest