Remove -info.plist file from copy bundle phase build setting.
Reorder preference class files.
Move General preference specific constant to itself’s file.
Move Watch list preference specific constant to itself’s file.
Move Notify preference specific constant to itself’s file.
Fix. variable names of notify preference.
Move Accountl preference specific constant to itself’s file.
Remove unused definitions.
Rename Preference classes from Objective-C++ to Objective-C extension.