MOBILE-753 grades: Add app-ico classes for font-icon
MOBILE-753 grades: Add app-ico classes for font-icon

tang7526/moodlemobile,clopezlga/moodlemobile,iharris78/ctcswlapp,jleyva/moodlemobile,marcusoft/Aula-Virtual,Ilmawankh/modle-elearning,ingoscarmorenoc/ios3,tang7526/moodlemobile,elvincasem/moodlemobileous,Namikase/moodlemobile,marcusoft/moodlemobile,ingeniuslearning/moodlemobile,dianjiaotong/moodle_apps_android,dianjiaotong/dianjiaotong_apps_android,dianjiaotong/dianjiaotong_apps_android,danielsonnora/universidaderaffinato,ubaldojmp/Moodle-CUC,ingoscarmorenoc/ios2,ingoscarmorenoc/ios3,muhammadumarpatel/felarc,moodlehq/moodlemobile,ingeniuslearning/moodlemobile,oustaban/moodlemobile,ingoscarmorenoc/ios4,muhammadumarpatel/felarc,vmoll/moodlemobile,sudeepnayak/moodlemobile,GG001/GG,bakasa/moodle101,moodlewebexapp/moodlemobile,4r1y4n/moodlemobile,elvincasem/moodlemobileous,akinibrahim/moodlemobile,ingoscarmorenoc/ios7,vincent-nephila/amaumobile,CEDITE/FACETVirtual.Mobile-OLD,bakasa/moodle101,clopezlga/moodlemobile,navdeep300/moodlemobile,sudeepnayak/moodlemobile,iharris78/ctcswlapp,marcusoft/moodlemobile,marcusoft/Aula-Virtual,danielsonnora/universidaderaffinato,oustaban/moodlemobile,Vedran91/moodlemobile,yusa55/moodlemobile,navdeep300/moodlemobile,ingoscarmorenoc/ios6,ardock/moodlemobile,Namikase/moodlemobile,Nithis111/AIT-Tech,ingoscarmorenoc/ios6,CEDITE/FACETVirtual.Mobile-OLD,ubaldojmp/Moodle-CUC,techguru123/MoodM,ingoscarmorenoc/ios4,ingoscarmorenoc/ios7,sergiopro14/moodlemobile,guozhenqiang/hit,knowngate/eduline,ardock/moodlemobile,taher552/tahfiz,Vedran91/moodlemobile,GG001/GG,Ilmawankh/modle-elearning,guozhenqiang/hit,4r1y4n/moodlemobile,Nithis111/AIT-Tech,sergiopro14/moodlemobile,vmoll/moodlemobile,ingoscarmorenoc/ios5,moodlehq/moodlemobile,techguru123/MoodM,dianjiaotong/moodle_apps_android,ingoscarmorenoc/ios2,stefobark/moodlemobile,ingoscarmorenoc/LLLLL,xrdcode/moodlemobile,moodlewebexapp/moodlemobile,akinibrahim/moodlemobile,stefobark/moodlemobile,ingoscarmorenoc/ios5,xrdcode/moodlemobile,vincent-nephila/amaumobile,taher552/tahfiz