Fixed "too few values in struct initializer"
Add apple script to dynamically get the url and page title from the front most browser window

supported browsers: Google Chrome, Safari, Firefox
Implemented dynamic retrieving of page url and title using apple script
Fix cli flag settings by specifying the field names explicitly.
Merged in grusch-it/go-pinboard/feature/frontmost-browser (pull request #1)

Get url dynamically from the front most browser
Merge branch 'develop'

* develop:
  Implemented dynamic retrieving of page url and title using apple script
  Add apple script to dynamically get the url and page title from the front most browser window
  Fixed "too few values in struct initializer"

Conflicts:
	go-pinboard.go