Fix up unneeded "" in Makefile.am.
Remove unneeded Floor and Ceil wrapper functions.
DJGPP fixes, including update pc/Makefile.tst.
Merge branch 'gawk-4.1-stable'
Fix presentation of asort and asorti.
Merge branch 'gawk-4.1-stable'
New file in helpers.
Merge branch 'gawk-4.1-stable'
Remove AC_FUNC_VPRINTF macro and header tests.
Update NEWS file.
Merge branch 'gawk-4.1-stable'