Fix various crashes found by Alexander Cherepanov
Fix crash in zip format found by Alexander Cherepanov
Fix various crashes found by Alexander Cherepanov
remove unused variable in putty_fmt_plug.c, valid()
Merge pull request #243 from frank-dittrich/unstable-jumbo

remove unused variable in putty_fmt_plug.c, valid()
Bug fixes to thin dynamic formats PHPS, formspring, mediawiki, osc and
phpassMD5. They over-ran buffer when given bad input files.
More robust valid() in salted sha1 / nsldap formats.
Do some actual validation in SIP valid().
Actually, while at it we should just as well validate it is lower-case hex.
WOW-SRP fixes. Not sure I found all, this is a mess.
Revert "Fix crash in zip format found by Alexander Cherepanov"

My worst patch ever :(

This reverts commit 0762dcb247b8ab1ca4b28f7f9ea438d4e648713c.