filesystem rename autoload -> Autoload, data->Data as it is in WMA (#1842)

I think it is helpful to more closely match the filesystem organization of the Wolfram distribution.

Author: rocky

admin-tools/make-dist.sh

@@ -16,7 +16,7 @@ fi
 
 cd ..
 source mathics/version.py
-cp -v ${HOME}/.local/var/Mathics3/doctest_latex_data.pcl mathics/data/
+cp -v ${HOME}/.local/var/Mathics3/doctest_latex_data.pcl mathics/Data/
 
 echo $__version__
 

mathics/autoload/rules/Bessel.m mathics/Autoload/rules/Bessel.mmathics/autoload/rules/Bessel.m renamed to mathics/Autoload/rules/Bessel.m

@@ -13,7 +13,7 @@ and I am submitting a further list to His Majesty to-night. I hope to complete
 the appointment of the principal Ministers during to-morrow. the appointment
 of the other Ministers usually takes a little longer, but I trust that, when
 Parliament meets again, this part of my task will be completed, and that the
-administration will be complete in all respects. 
+administration will be complete in all respects.
 
 I considered it in the public interest to suggest that the House should be
 summoned to meet today. Mr. Speaker agreed, and took the necessary steps, in
@@ -23,7 +23,7 @@ proposed until Tuesday, 21st May, with, of course, provision for earlier
 meeting, if need be. The business to be considered during that week will be
 notified to Members at the earliest opportunity. I now invite the House, by
 the Motion which stands in my name, to record its approval of the steps taken
-and to declare its confidence in the new Government. 
+and to declare its confidence in the new Government.
 
 To form an Administration of this scale and complexity is a serious
 undertaking in itself, but it must be remembered that we are in the
@@ -53,4 +53,4 @@ urge and impulse of the ages, that mankind will move forward towards its goal.
 But I take up my task with buoyancy and hope. I feel sure that our cause will
 not be suffered to fail among men. At this time I feel entitled to claim the
 aid of all, and I say, "come then, let us go forward together with our united
-strength." 
+strength."