Release version 0.0.8

What's Changed

This is a pretty big release which changes the underlying rendering engine to be a 2 step process instead of one. While it makes it ~20% slower, it allows for Context and it is too important of a feature to not to have it.

If while working on the example app I decide that the performance hit is too big, I might revert the changes, but the library focuses on 2 things: performance and composability, so I am okay with small compromises. At the end of the day, updates are still granular, so a small performance hit should not be too hard in theory.

• handle boolean DOM attributes correctly by @Bloomca in #51
• allow dynamic adding and removing event listeners by @Bloomca in #52
• call unmount callbacks on entire Veles app removal by @Bloomca in #53
• allow to return useValue/useValueSelector directly from components by @Bloomca in #54
• fix incorrect unmount behaviour with useValue logic by @Bloomca in #56
• Use value activate onmount by @Bloomca in #57
• do not track attributes value until mounted by @Bloomca in #58
• useValueIterator subscribes only on mount by @Bloomca in #60
• Fix mount state subscriptions check by @Bloomca in #61
• change rendering approach by @Bloomca in #62
• Add Context support

Full Changelog: 0.0.7...0.0.8