Revert "Commented out unimplemented imports"

This reverts commit f6b76db8.

pycroscopy/processing/__init__.py

@@ -8,17 +8,17 @@ def no_impl(*args,**kwargs):
     raise NotImplementedError("You need to install Multiprocess package (pip,github) to do a parallel Computation.\n"
                               "Switching to the serial version. ")
 
-# from .feature_extraction import FeatureExtractorParallel, FeatureExtractorSerial
-# from .geometric_transformation import geoTransformerParallel, geoTransformerSerial
-# 
-# FeatureExtractor = FeatureExtractorSerial
-# geoTransformer = geoTransformerSerial
-# 
-# try:
-#     import multiprocess
-# except ImportError:
-#     FeatureExtractorParallel = no_impl
-#     geoTransformerParallel = no_impl
-# else:
-#     FeatureExtractor = FeatureExtractorParallel
-#     geoTransformer = geoTransformerParallel
+from .feature_extraction import FeatureExtractorParallel, FeatureExtractorSerial
+from .geometric_transformation import geoTransformerParallel, geoTransformerSerial
+
+FeatureExtractor = FeatureExtractorSerial
+geoTransformer = geoTransformerSerial
+
+try:
+    import multiprocess
+except ImportError:
+    FeatureExtractorParallel = no_impl
+    geoTransformerParallel = no_impl
+else:
+    FeatureExtractor = FeatureExtractorParallel
+    geoTransformer = geoTransformerParallel