Fixing some locations to use the IsTeamAdmin function which properly checks for system admin permissions.

model/user.go

@@ -304,10 +304,14 @@ func isValidRole(role string) bool {
 	return false
 }
 
+// Make sure you acually want to use this function. In context.go there are functions to check permssions
+// This function should not be used to check permissions.
 func (u *User) IsInRole(inRole string) bool {
 	return IsInRole(u.Roles, inRole)
 }
 
+// Make sure you acually want to use this function. In context.go there are functions to check permssions
+// This function should not be used to check permissions.
 func IsInRole(userRoles string, inRole string) bool {
 	roles := strings.Split(userRoles, " ")