add script for checking and download escape pod episodes
stepmania: change exec path
stepmania: added sound/graphics offset for my w520
stepmania: shrink display to 640x480
stepmania: speedmods m300=>m550
stepmania: default speedmod C300 => C350
stepmania: add sub for setting speed mods directly in lua script
stepmania: pull readLines/writeLines to subs
stepmania: pull fallbackThemeDir to a var
stepmania: comment out fallback controller map input delay
stepmania: set screen-map overlay wait time to 0
stepmania: set p1 controller redoctane=>ems
stepmania: dont guess joysticks, add simple defaults
stepmania: rewrite keygrid parser
stepmania: remove joystick guessing
stepmania: usage => multiline string
stepmania: split keygrid => js/kb
stepmania: add js-name args and shorthand, fix usage, simplify passing keyargs
stepmania: change p2 U/D/L/R => u/r/e/i
stepmania: add list of allowed args for --screen