Switch profile code to a more flexible method

CMakeLists.txt

README.md

src/Cache.cpp

src/MainWindow.cpp

src/MainWindow.h

src/UserSettingsPage.cpp

src/UserSettingsPage.h

src/main.cpp

third_party/SingleApplication-3.2.0-dc8042b/.gitignore

third_party/SingleApplication-3.2.0-dc8042b/CHANGELOG.md

third_party/SingleApplication-3.2.0-dc8042b/CMakeLists.txt

third_party/SingleApplication-3.2.0-dc8042b/LICENSE

third_party/SingleApplication-3.2.0-dc8042b/README.md

...d_party/SingleApplication-3.2.0-dc8042b/SingleApplication

third_party/SingleApplication-3.2.0-dc8042b/Windows.md

...rty/SingleApplication-3.2.0-dc8042b/singleapplication.cpp

...party/SingleApplication-3.2.0-dc8042b/singleapplication.h

...rty/SingleApplication-3.2.0-dc8042b/singleapplication.pri

...y/SingleApplication-3.2.0-dc8042b/singleapplication_p.cpp

...rty/SingleApplication-3.2.0-dc8042b/singleapplication_p.h