Add tox configuration file
Support for minimizing to tray
removed debug include
click on tray icon show window when minimized
Merge pull request #114 from Zimnx/minimalize-to-tray

Added ability to minimize to tray
Fixed application being closed with the last visible dialog closed
Fixed formatting of tray code and behaviour of context menu
Improved tray menu
Allow only one instance of the settings dialog to exist
Updated Core submodule
Adapted to Core API changes
Lowered cpu usage a bit
Merge pull request #113 from ud1/master

Add tox configuration file
Went over last merge
Retrieve username and status message from toxdata file
Use QSaveFile for saving toxdata file
Added last seen tooltip
Fixed FreindItemWidget not initializing status icon
Removed unnecessary debug output
Merge branch 'upstream/master'

Conflicts:
	src/Settings/guisettingspage.cpp
	src/Settings/guisettingspage.hpp
	src/Settings/settings.cpp
	src/Settings/settings.hpp
	src/mainwindow.cpp
	src/mainwindow.hpp