Update level_loading.jade

Removed an unused tip.
Fixes for spectate layout in new WebGL dual-stage mode.
Merge pull request #1680 from Imperadeiro98/patch-1

Update level_loading.jade
Merge pull request #1678 from yjw9012/master

#1668: moved the question above the dropdown
Update cast_button.jade

Internationalized "Submit".
Update pt-BR.coffee
Merge pull request #1681 from Imperadeiro98/patch-1

Update cast_button.jade
Update pt-BR.coffee
Update pt-BR.coffee
Update pt-BR.coffee
Merge pull request #1682 from rafajaques/master

pt-BR translations
Removed level-specific achievements from achievements list. Fixed bug with return type documentation not showing up. Reduced initial first-level arrow delay.
Don't save duplicate user code problems
First set of fixes to HeroVictoryModal.
More blingstrositization for the HeroVictoryModal.
Added signup poke to HeroVictoryModal.
Update pt-BR.coffee
Fixed spell palette changes for iPad
Almost done!
Merge pull request #1684 from rafajaques/master

Almost done