ActLogDatabaseActivity was invoked via menu
UnknownUserActivity.java was added
encoding was changed from Shift JIS to UTF-8
jar was added to dependencies description in build.gradle
TemporaryUserDatabaseHelper and TemporaryUserDatabaseOperate was moved to db package
TemporaryUsersDatabaseOperate class uses singleton pattern
bug fix for TemporaryUsersDatabaseOperate
reformatting MakeQRCode.java
registration code (AB1234) generation was separated to RegistrationCode class
android-support-v4.jar was removed
activity and util subpackages are introduced.
SharedPreferences related codes are going to be moved to util.Preference class
just reformatting
unnecessary comment lines are removed
tempUserPic method was separated to TempUserActivity class
Interfaces for SharedPreference was gathered into Preference class
unnecessary public was changed to private
menu is defined by XML file
TempUserActivity was registered in AndroidManifest.xml
Relay#unregisterReceiver catches IllegalArgumentException