Added new how to page and known issues

Known issues and HOW to page (which might be redundant in this case,
since there is an article explaining how this is implemented)
Fix minor markdown issue

minor formatting fix
Removed duplicate content link

I think one list is enough.
Update GAPI client source code to avoid error.

Old code was giving following error:
Uncaught TypeError: Cannot call method 'setToken' of undefined at
file:///android_asset/www/js/model/liquid.model.tasks.js:85
Merge remote-tracking branch 'amardeshbd/master'

Conflicts:
	readme.md