Merge pull request #82 from dazKind/master

Thanks for the contribution! 

@dazKind : added missing ogl functions
Stage Events; cleaning up sx/sy clarity, adding deltaX and deltaY values for use with things that have delta (specifically in this case mouse locking support)
Mouse; relative mouse mode (for locking the cursor inside the window, like FPS games do) delta passed into the event if it's enabled
Console Spamming!

@RobDangerous
@jgranick

What is this for? It’s getting called quite a bit while my games are
running, even when I am most certainly not trying to change the screen
mode……
Wrapper; enforcing return types
Don't list Lime samples when using OpenFL
Merge openfl-native templates
Use charCode and keyCode from Android
Compile fix
Compile fix
Clear fix
Fix Android key codes
Fix Android char code
Merge pull request #84 from dazKind/master

fixed commented parameternames
Don't set byte offset if playing sound from start
Try adding Travis build script
Update README.md
Try uploading build files after completion
Travis CI fix
Try faster Haxe install
Fix CI script