Release-v0.1.5

Fix double rounding when tick is negative in TickManager.getNextInitializedTick.

Release-v0.1.4

1. Add subgraph as datasource of events to save at least 75% time spending on downloading than from RPC
2. Add error handling during downloading to make sure integrality and consistency of events
3. Add detailed docs

First Release-v0.1.2

Publish to NPM