Removed the old EPIGAME starmap navigation mode
Removed hard coded dimensions of step icon for current node display in VLE
Added animations for node icon changes when returning to the map view in the EPIGAME starmap

- added an eventManager event ('renderNodeBlocked') that fires when user requests to open a step that is locked (not visitable)
- some i18n updates
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE