Merge pull request #29 from kazcfz/v1.5.7

V1.5.7

Merge pull request #27 from kazcfz/v1.5.6

V1.5.6

Update manifest.json

Merge pull request #23 from kazcfz/v1.5.4

V1.5.4

Update manifest.json

Update manifest.json

- Using 'all_frames' with manual script injection is duplicate and it showed in Firefox.

Update content.js

- Change date format from US (mmddyy) to GB (ddmmyy)

Update manifest.json

Merge pull request #18 from kazcfz/v1.4.1

V1.4.1

Merge pull request #17 from kazcfz/v1.4.0

V1.4.0