Fix up HowToPlay graphics
Fix up HowToPlay graphics (2)
Make TwoPartSelection dialog work for all players
Make TwoPartSelection dialog hide on events
ScoreDisplay has actual shadows now...
Merge branch 'changes-beta4' of https://github.com/Midiman/stepmania
Continue now goes to SelectStyle. Fixes error
TwoPartSelection noteskin for pump only, routine skins
Merge branch 'changes-beta4' of https://github.com/Midiman/stepmania
Add people to credits.
Remove non-working Export Packages for now; might add later if it works again
Update ScreenHowToPlay elements to use localized strings
Rewrote ScreenCredits to move StepMania credits to Scripts/04 CreditsHelpers.lua and provide an API for adding sections so that themers don't have toe duplicate stepmania credits to theme the screen.
expose InsertCoin and InsertCredit to Lua

This commit exposes InsertCoin() and InsertCredit() to Lua under GAMESTATE.  It adds a check to ensure overall credits don't become negative when deducting and only plays sounds if credits are being added.

Themers are instructed to deduct credits by passing negative values to InsertCoin.
update InsertCoin and InsertCredit functions

These should now agree with kyzentun's suggestions.
touch up style to InsertCredit and InsertCoin

Third time's the charm.
Added djpohly to credits.
fix ScreenEvaluation background not being centered properly
update stepmania.com links to point to old.stepmania.com where needed
Added __screen__ special texture name.  Added AMV:GetTexture, RageTexture:Reload, and Screen:SetNextScreenName lua functions.