change manifest version to 2.3.1
change manifest version to 2.3.1
icos-urenio/Improve-my-city,rgbfx/Improve-my-city,ruworuro/Improve-my-city,rgbfx/Improve-my-city,rgbfx/Improve-my-city,icos-urenio/Improve-my-city,icos-urenio/Improve-my-city,ruworuro/Improve-my-city,ruworuro/Improve-my-city