Buildbot changes

See merge request !477

Dedicated server credits fix

See merge request !476

MI's side discolor fix

See merge request !475

Gametype strings backport

See merge request !473

Fix credits gamestate in dedicated mode, by properly separating the timer variable code from the drawing code in a semi-hacky way

Allow connecting to localhost / 127.0.0.1

See merge request !474

Because IPv6 doesn't seem to work anyway.

-noxinput and -nohidapi command line parameters.

See merge request !468

Error if the lump is a PNG lump

See merge request !466

This reverts commit d03c5393.

Added the Gametype_Names array and G_GetGametypeByName for ease in converting gametype nums to strings and vice versa

gametype_cons_t is now initialised using the Gametype_Names array, like how Color_cons_t is initialised using Color_Names

# Conflicts:
#	src/doomstat.h
#	src/m_menu.c

Fade out level music during intermission via level header

See merge request STJr/SRB2!470

Custom intermission music by level header [by SteelTitanium]

See merge request STJr/SRB2!469