Refactored to rename "service terms" to "terms of service" (#9581)

* #124 renamed identififers from service terms to terms of service

* #124 renamed identififers from service terms to terms of service

* 124 renamed ServiceTerms model to TermsOfService

* 124 Renamed EnableCustomServiceTerms feature flag to EnableCustomTermsOfService

* 124 Renamed EnableCustomServiceTerms feature flag to EnableCustomTermsOfService

* #124 fixed formatting

* #124 fixed formatting

* #132 renamed table ServiceTerms to TermsOfService

* #124 renamed some missed files from 'service_terms' to 'terms_of_service'

* #124 removed fixed TODOs

* drop migrate of ServiceTerms table, since backporting

* s/ServiceTerms/TermsOfService/ in tests

* s/AcceptedServiceTermsId/AcceptedTermsOfServiceId/

Change the model attribute, even though the column name will eventually be removed.

* s/accepted_service_terms_id/accepted_terms_of_service_id/ to match redux

* s/serviceTerms/termsOfService

* rename column too, and add max size constraint

* s/EnableCustomServiceTerms/EnableCustomTermsOfService

app/user.go

@@ -1652,16 +1652,16 @@ func (a *App) UpdateOAuthUserAttrs(userData io.Reader, user *model.User, provide
 	return nil
 }
 
-func (a *App) RecordUserServiceTermsAction(userId, serviceTermsId string, accepted bool) *model.AppError {
+func (a *App) RecordUserTermsOfServiceAction(userId, termsOfServiceId string, accepted bool) *model.AppError {
 	user, err := a.GetUser(userId)
 	if err != nil {
 		return err
 	}
 
 	if accepted {
-		user.AcceptedServiceTermsId = serviceTermsId
+		user.AcceptedTermsOfServiceId = termsOfServiceId
 	} else {
-		user.AcceptedServiceTermsId = ""
+		user.AcceptedTermsOfServiceId = ""
 	}
 	_, err = a.UpdateUser(user, false)
 	if err != nil {