Bump NPM version to 1.0.8
Bump NPM version to 1.0.8

Change-Id: I54e220fd5d6f1406e6c215d7aa8f6553e7fe9bed

actions-on-google/actions-on-google-nodejs,actions-on-google/actions-on-google-nodejs,actions-on-google/actions-on-google-nodejs