client: removed COM_StripExtension3 in renderer2
misc: added CMake check for libjpeg-turbo v6 (dynamic linking only), refs #329 refs #162

Required for Fedora.
misc: updated dependencies list in README
misc: use unix eol and utf-8 encoding in license file
misc: install man page on unix
client: removed mac mouse acceleration hack
It was an abandoned experiment in ioq3 and messed with the mouse tracking too much to be desirable.
misc: FindJPEGTURBO.cmake sets standard JPEG pathes, refs #329
IRC: make it connect straight to our channel
misc: update for translation files, refs #244
misc: moved tinygettext dependency internally, fixes #500
misc: moved tinygettext files, refs #500
client: workaround for OS X gamma reset bug
misc: fix for unhandled escape, refs #244
misc: changed INSTALL_DEFAULT_MODDIR to /lib/etlegacy, refs #160
client: bad chars removed from tinygettext
game: g_debughitboxes fixed
game: fixed antilag trace functions to use our proper hitbox values
game: don't do G_HistoricalTraceBegin/End when antilag is disabled -
patch by Forty
game: don't trace twice in trap_Trace() - we do the z adjustments
before our trap_trace call
misc: update for files translations, refs #244