Bumped version to '1.7.0-Preview.1'

Bumped version to '1.6.0'

Bumped version to '1.6.0-Preview.3'

Bumped version to '1.6.0-Preview.2'

Bumped version to '1.6.0-Preview.1'

Adding new version in constants.ts

Bump version

Merge pull request microsoftgraph#148 from microsoftgraph/version_bump

Bumped up the version for release

Bumping version number and re-run generating js files

Merge branch 'dev' of https://github.com/microsoftgraph/msgraph-sdk-j…

…avascript into dev