cubicweb-mercurial-server #2781781 rename hg_key_for_user before it is too late [validation pending]

prioritynormal
typetask
done in0.2.1
load0.100
load left0.000
closed by#e2522a78b3a0 [schema] rename hg_key_for_user to public_key (closes #2781781)
patch[schema] rename hg_key_for_user to public_key (closes #2781781) [applied]