Fix tokenSeperator default val

See PR: #65

Add tokenSeparator prop

And bump fuse.js to v 3.4.6

Fuse bump

bumps fuse.js dep to 3.4.5

vue bump

updates vue dep to 2.6.10

Fix install method

Fixes issue with install method, see here: #45

Vue CLI 3

2.0 release migrates project to Vue CLI 3. There shouldn't be breaking changes, but I decided on a major version bump because the bundle step was changed. Upgrade with caution please.

1.5.0 added placeholder prop

Added placeholder prop to input component. That's all 😸