Merge pull request #71 from mvayngrib/master

fixed IDBKeyRange.only - lowerOpen, upperOpen should both be false
Updated license in index.html
Updated license in package
Fix #74
Added transaction on the request object

See spec: https://developer.mozilla.org/en-US/docs/Web/API/IDBRequest
Merge pull request #80 from DickvdBrink/master

Added transaction on the request object
Added nuget spec file.
Merge pull request #81 from DickvdBrink/master

Added nuget spec file.
Merge remote-tracking branch 'upstream/master'
Fix bug in IDBKeyRange::only - it simply didn't work.
Merge pull request #87 from kir/master

Fix bug in IDBKeyRange::only - it simply didn't work.
Merge remote-tracking branch 'upstream/master'
adapted for urbini