The --msgid-fallback mode still reports conflicts between msgid
and msgstr strings, but the resulting suggestions can now include
accelerators reserved by msgids; thus the translator won't be
lured into avoiding accelerators that she'll be likely to replace
anyway. Therefore, --msgid-fallback is now the default and can
be turned off with the new option --no-msgid-fallback.
After checking each file, check-accelerator-conflicts.pl displays
a one-line summary of how many accelerators it checked and how
many conflicts it found. This is primarily meant to warn people
by displaying zeroes if if gather-accelerator-contexts.pl has not
been run.
Locale::PO::dump doesn't output an msgid if there isn't one.
It also recognizes conflicts that involve more than two msgstrs.
And it no longer outputs the msgids.
These changes make the output much shorter than before,
while still listing all the relevant information.
