Refactor layout handling
Update all config files for new layouts syntax
Update main layouts
Minor updates in globalSettings
Load grid items on the fly
Move back to angular-gridster main repo

We don't need the fork anymore, the main app got rid of the jquery(-ui)
dependencies as well.
Try a more fine-grained grid structure
Allow to define chunkSizes in layouts
Update chunkSize in chunkModeSwitcher
Add layout listener in navigator at the right time
Track grid items by their plugin name
Better entry animation in arethusaGrid
Minor refactor in arethusaGrid
Add a perseids layout file
Set initial globalSettings layout value

Not necessary for the general application, but highly useful in testing
and for probable future changes.
Use simplified layout for e2e configuration
Merge pull request #464 from latin-language-toolkit/flexible_layouts

Flexible layouts through configuration