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
dummy_centronics: add dummy driver to test ap2000
lx810l, ap2000: implement working devices

Improve Epson LX-810L and ActionPrinter 2000 up to a point where they
actually work. Devices boot and enter main input loop, but input is
not yet implemented. It is possible to test the printers by toggling
the Line Feed button (press 'L'), resetting the machine, toggling the
Line Feed button again, and holding the Online button down (press 'O').

The code has also been split from lx800.
lx810l: add dip switches and add more information to fire