Merge branch 'release/1.6.0' into develop
Merge pull request #25 from eCrowdMedia/release/1.6.0

Release 1.6.0

New API
- getReadingByReadingId
Merge remote-tracking branch 'refs/remotes/origin/develop' into develop
New comment api

- `deleteCommentByCommentId` has server error.
- `createCommentByHighlightId` and `deleteCommentByCommentId` are not
  tested.
Merge pull request #29 from eCrowdMedia/feature/Feature-comment-api

New comment api
Fix highlights and comments API

- Add `createHighlightByReadingId` and `deleteHighlightByHighlightId`
- Test pass `createCommentByHighlightId` and `deleteCommentByCommentId`
Merge pull request #31 from eCrowdMedia/feature/Feature-Highlight-Delete-API

Add new feature in highlights and comments api
Modidy version number and build
Merge pull request #32 from eCrowdMedia/release/1.7.0

Release 1.7.0