Update metadata.json

Update CHANGELOG.md to reflect V47

Merge pull request gTile#221 from gonzojive/issue-200-fix

Attempt to fix margins for preset sizes (Issue gTile#200)

Merge pull request gTile#219 from doobry/gnome-40.star

Change shell-version metadata to be 40

Update metadata.json for gnome-shell v40.0 support

Merge pull request gTile#177 from jshack88/patch-1

Update app.ts, move_frame before move_resize_frame

Fix gTile#130, rounding caclulation for window size

Merge pull request gTile#166 from crabtree/monitors-changed

Reinitialize girds on monitors-changed event (fixes gTile#165)

Bump up version no, to prevent automated annoying message of ugrade a…

…vailable

Change help in preferences to point to github README.md, add pack scr…

…ipt for deployment to EGO