Update gradle and build dependencies

Julien LepillerSat Apr 25 23:49:34+0200 2020

06f5bbe

nani/app/furiganatextview/src/main/res/values
namelast commitdate
attrs.xmlAdd furiganaMon Apr 15 20:09:48+0200 2019
strings.xmlAdd furiganaMon Apr 15 20:09:48+0200 2019