added nm-applet to autostart
changed shortcuts for nonempty tag navigation, because it interfered with the browser shortcut for browsing navigation
replaced mypromptbox with menubar
added history restore if current tag is selected
added chromium as standard browser
added personally customized tag layout and program bindings to tags
changed the order of tags
changed woeid of yawn to berlin
added i3lock for locking screen
deleted former shortcut for i3lock, because it is now bound by XF86ScreenSaver
added skype shortcut
switched i3lock with slimlock
added thunderbird short cut
Merge branch 'personal_config' of https://github.com/cgundogan/awesome-copycats into personal_config
deleted nm-applet from autostart