Merge branch 'improvedEmojiLoading' into 'master'

CustomModels/emojismodel.cpp

CustomModels/messagemodel.cpp

CustomModels/usermodel.cpp

api/meteorddp.cpp

ddpRequests/ddprequest.cpp

ddpRequests/ddprequest.h

fileuploader.cpp

notifications/ios/applepushnotifications.h

persistancelayer.cpp

persistancelayer.h

repos/entities/emoji.cpp

repos/entities/emoji.h

repos/entities/loginmethod.cpp

repos/entities/loginmethod.h

repos/entities/rocketchatuser.cpp

repos/entities/rocketchatuser.h

rocketchat.cpp

rocketchat.h

rocketchatserver.cpp

rocketchatserver.h