Merge pull request #17 from tats/bug/mewl-segv

Fixing segfault of mewl.
Re-highlight the message body after decrypting an old-styled PGP message
GnuPG at least 2.0.19 emits 'Bad session key' for a wrong passphrase
Check for the existence of a decrypted file instead of relying upon
Emacs's process filter

It seems that Emacs's process filter frequently drops some lines of
process's output. This patch works around this (long-standing?) Emacs
bug.
Merge pull request #20 from tadanagao/highlight-old-style-pgp

Re-highlight the message body after decrypting an old-styled PGP message
Merge pull request #21 from tadanagao/fix-gnupg2-things

Support GnuPG 2.0.19 and work around Emacs's process handling bug
adding README.md.
wording change.
Typo fix for info/mew.texi
Merge pull request #22 from tats/bug/typo

Typo fix for info/mew.texi
Use auth-user for smtp-passtag
Merge branch 'bug/smtp-passtag'