Bump versions to 2.7.8 in README
Bump versions to 2.7.8 in README

photonstorm/phaser-ce,adamlabadorf/bobodyssey,Acaki/WWW_project,MasahiroWard/MVPgamedev,MasahiroWard/MVPgamedev,Acaki/WWW_project,natlot/phaser-ce,natlot/phaser-ce,MasahiroWard/MVPgamedev,Acaki/WWW_project,yupaul/phaser-ce,photonstorm/phaser-ce,yupaul/phaser-ce,photonstorm/phaser-ce,natlot/phaser-ce,yupaul/phaser-ce,adamlabadorf/bobodyssey,natlot/phaser-ce,adamlabadorf/bobodyssey,MasahiroWard/MVPgamedev,photonstorm/phaser-ce,yupaul/phaser-ce