cleaned up lean mode build and test suite

fix #1575

Lib/__init__.py

@@ -1,8 +1,12 @@
 """
 genutil -- General utility modules for scientific computing
 """
+## Lean mode does not install xmgrace module
 from grower import grower
-import xmgrace
+try:
+  import xmgrace
+except:
+  pass
 import statistics
 from minmax import minmax
 from statusbar import statusbar
@@ -14,7 +18,6 @@
 from unidata import udunits
 from Filler import Filler,StringConstructor
 from averager import averager, AveragerError, area_weights, getAxisWeight, getAxisWeightByName,__check_weightoptions
-#from Statusbar_Pmw import Statusbar
 import cdat_info
 from ASCII import get_parenthesis_content
 cdat_info.pingPCMDIdb("cdat","genutil")