fix previous merge
fix previous merge

'getPixel' was accidentally removed

mottx/lwip,lpicanco/lwip,lpicanco/lwip,gimox/lwip,fireball-x/lwip,fireball-x/lwip,neophob/lwip,sanemat/lwip,sanemat/lwip,oliversalzburg/lwip,GrimDerp/lwip,oliversalzburg/lwip,mottx/lwip,domosapien/lwip,MAMISHO/lwip,antoinepairet/lwip,cocos-creator/lwip,GrimDerp/lwip,neophob/lwip,unbornchikken/lwip,cocos-creator/lwip,fireball-x/lwip,antoinepairet/lwip,weareu/lwip,EyalAr/lwip,domosapien/lwip,lpicanco/lwip,sanemat/lwip,EyalAr/lwip,oliversalzburg/lwip,mottx/lwip,michaelBenin/lwip,GrimDerp/lwip,cocos-creator/lwip,gimox/lwip,unbornchikken/lwip,sanemat/lwip,mottx/lwip,oliversalzburg/lwip,lpicanco/lwip,weareu/lwip,weareu/lwip,unbornchikken/lwip,michaelBenin/lwip,antoinepairet/lwip,antoinepairet/lwip,gimox/lwip,gimox/lwip,MAMISHO/lwip,EyalAr/lwip,michaelBenin/lwip,domosapien/lwip,EyalAr/lwip,MAMISHO/lwip,MAMISHO/lwip,weareu/lwip,michaelBenin/lwip,GrimDerp/lwip,neophob/lwip,cocos-creator/lwip,unbornchikken/lwip,neophob/lwip,fireball-x/lwip,domosapien/lwip