Per RFC, continue the build system renaming
   OMPI_C_GET_ALIGNMENT  -> OPAL_C_GET_ALIGNMENT
   ompi_cv_c_align_  ->  opal_cv_c_align_
Fix comment and add copyright
Complete the cleanup of this file
[ompi|opal]_setup_cxx.m4: ensure to use the C++ compiler (!)

We didn't AC_LANG_PUSH(C++) before checking to see if the compiler
supports -finline-functions, meaning that configure used the C
compiler for these checkes, not the C++ compiler.

Due to #2999, we have to fix both opal_setup_cxx.m4 and
ompi_setup_cxx.m4.

cmr=v1.8.2:reviewer=rolfv
Don't replace stuff in the autom4te.cache directory
Per RFC, continue cleaning up the build system
  OMPI_C_WEAK_SYMBOLS  ->  OPAL_C_WEAK_SYMBOLS
  ompi_cv_c_weak_symbols  ->  opal_cv_c_weak_symbols
Per RFC, continue cleanup with minor change to one file
Per RFC, continue cleanup with minor changes to one file
Per RFC, continue with build system renaming
Per RFC, continue with build system renaming
Per RFC, continue the joyous fun of the renaming exercise
Per RFC, continue the build system renaming
Per RFC, continue the renaming process
Per RFC, continue the renaming effort
Per RFC, continue the naming conversion
Per RFC, continue renaming project
Per RFC, another round in the renaming game - nearly complete
Per RFC, another round of changes
Fix romio configure to look for update OMPI support file name
Per RFC, continue with renaming