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.
prevents error in firefox
Merge pull request #89 from elmerbulthuis/master

prevents error in firefox
Run “grunt build”
Merge pull request #93 from brickseditor/master

The dist files don't contain the last three fixes
fix https://github.com/axemclion/IndexedDBShim/issues/90