Provide callback instead of doing UI tasks of calling app #49#50

sunkup wants to merge 36 commits intomainbitfireAT/cert4android:mainfrom

49-provide-callback-instead-of-doing-ui-tasks-of-calling-appbitfireAT/cert4android:49-provide-callback-instead-of-doing-ui-tasks-of-calling-appCopy head branch name to clipboard