pass_gen   Added cisco8 and cisco9 hashes
Mask mode: Change meaning of ?l, ?u, ?d and ?s to always mean 7-bit ASCII,
and add ?S (high bit specials) and ?D (high bit digits).

Also increase number of custom placeholders to 9 (?1..?9).
cisco8 hash added to CPU format
cisco8:  added to GPU. Fixed a few things on CPU side also
Mask mode: Escape fixes. Some things were lost by recent commits,
others were not really good to begin with: We must never look
backwards for detecting escapes, only forward. See #776 for older
discussion.
Mask mode: Escape fix for \xHH hex. See #841.
Despite generated from the "Unicode database", encoding_data.h
contained a dupe greek character.
Include ASCII in list of encodings, mostly for tab completion
to include it.
pass_gen:  added scrypt and django-scrypt hashes
oracle8, trying to correct crash on travis
oracle8, bug in last push