Bumped version to 0.4.12

Check if JSON.parse and JSON.stringify are functions or not

fixed a bug with TTL timeout

Maintenance release, v0.4.9

Updated component.json

Changed license from MIT to Unlicense

Service release, bumped version to 0.5.6

Use try catch for running observer callbacks, fixes #63

change updated backend to false, instead of null. bump version

listen for any key with '*'