upd7810: fix bug introduced in extended timer simplification
upd7810: ECNT clear control happens after capture control
upd7810: fix and export timer/event counter output

The timer/event counter outputs (CO0 and CO1) are set differently when
EOM changes and when a timer update occurs. Most EOM values are
cleared on use. The document at [0] is confusing regarding these bits.
An older document [1], easier to understand, was used instead.

[0] NEC Electronics User's Manual, April 1987
[1] NEC uCOM-87AD Family 8-Bit Microcomputers uPD78C1X Users Manual
tumbleb.c: flip_screen_set() automatically flips tilemaps (nw)
Merge pull request #37 from ramiropolla/upd7810

upd7810: fix and improve timer/event counter
(MESS) softlist: Added new lists for Colour Genie, DAI Personal Computer and Jupiter Ace cassettes. [Riley110]
(MESS) compclr2_flop: Added a few additional images. [Riley110]

out of whatsnew: I took the chance to improve software descriptions in compclr2_flop, but there is still a lot of space
for improvements :)
tilemap.c: Respect gfx_element::colors() just like drawgfx.c does. Add temporary assert to catch regressions (i.e. drivers that didn't define their gfx elements correctly) (nw)
Add missing closing tag.
Convert comments to UTF-8 so strict parsers can parse this file.
Merge pull request #38 from 0-wiz-0/master

Fixes for two software lists
added command-line option -[no]drc_log_uml to control DRC UML disassembly logging [Oliver Stöneberg]

allows logging of DRC UML disassembly without re-compiling / removes
DRCUML_OPTION_LOG_UML and all the core-specific LOG_UML defines
added device shortname to DRC UML log for systems with multiple DRCs (nw)

e.g. n64