Added AddInputCallback and RemoveInputCallback to Lua API for screen.  ScreenManager now passes input to the lua side of each screen in addition to the engine side.
created ArrowEffects namespace

and exposed all arrow effects functions. This can allow themed elements
to move with columns during gameplay, such as column specific judgments,
flashes, or whatever else.
Documentation from Matt for ArrowEffects namespace.
Fixed invalid LineNames in ScreenOptionsExtended in _fallback metrics.
Added heart rate based calorie counting method to Profile as an alternative to step count based calorie counting.  Removed unused IsWeightSet from Profile::SaveGeneratlDataCreateNode.
Added doc explaining what a theme needs to support heart rate calorie calculation.
Merge pull request #210 from kyzentun/HeartCalories

Heart calories
Changed SCREENMAN:SetNewScreen and AddNewScreenToTop to emit an error for an invalid screen instead of crashing stepmania.
= Operator should check for self-assignment
Minor performance enhancement

`list.empty()` runs in constant time; `list.size` can run in linear time.
`list.empty()` runs in constant time; `list.size` can run in linear time.

Sources:
http://www.cplusplus.com/reference/list/list/size/
http://www.cplusplus.com/reference/list/list/empty/
Remove memory leak in RageSurfaceUtils::Palettize
Merge branch 'patch-2' of https://github.com/moshekaplan/stepmania
Merge branch 'patch-3' of https://github.com/moshekaplan/stepmania
Added semicolon that moshekaplan forgot.
Merge pull request #206 from kyzentun/InputCallbacks

This seems solid in my testing, I've converted Consensual to use it instead of CodeMessageCommand.
Added Actor:GetDestX/Y/Z to Lua API.
add pkgingo's (Win32) Minimaid driver.
* new makefile config option "HAVE_MINIMAID"
* update all Visual Studio projects
Changed InputFilter to not assert on unrecognized input devices or buttons.
fix autogen freaking out after the Minimaid commit
thanks to @spigwitmer for the fix
Fixes issue #216 : Cannot build with --without-ffmpeg