IDEView: focus state routines [#80356544]
IDEView: set active pane focus state [#80356544]

Set focus state of IDE when window loses and gains focus, user switches
panes, tabs and apps.
Merge pull request #42 from koding/focus-state

IDEView: set active pane state [#80356544]
shortcuts: fix full screen shortcut
shortcuts: rename line motion key combinations
shortcuts: remove duplicate entry
shortcuts: remove obsolete CTRL+L
shortcut: conflicts with default `Go to previous line` key combo
shortcuts: fix word selection key combos