help is viewed in the activity

helplink as a json file
focus on the help view
logging and comments

removed helplink.py from build

fixed some spaces and tabs issues

use bundle id instead of activity name
view translated content

modified according to coding styles

modified copyright info
Merge branch 'activity_help' of https://github.com/callkalpa/sugar into activity_help

Conflicts:
	extensions/globalkey/viewhelp.py