hdf5_ep

[svn-r11085] Purpose:
Bug fix

Description:
Update Makefiles now that docs are no longer in main hdf5 tree.

Solution:
Changed root-level Makefile.am not to recurse into docs tree.
Removed docs Makefiles from configure.in.
Removed config/commence-doc.am, since it is no longer used.

Platforms tested:
mir (change to Makefiles only)