PLF-5883: Lose iframe when clicking links in Getting Started and Suggestions applications

Problem analysis
- The window target is currently wrong.

Fix description:
- Set the target to current window.

Conflicts:
	extension/portlets/homepagePortlets/src/main/webapp/js/suggestions/suggestions.js
PLF-5834 No language input in Announcement template

Fix description:
* Add language field in Announcement template
PLF-5826: [Forum statistics gadget] Uncaught data error

Fix description:
	- Initiate the first weekly statistic when starting PLF from scratch
PLF-5820: Login History gadget failed to display statistics charts

Fix descripition
	- Correct the version of jqplot

Conflicts:
	exo-gadget-pack/gadget-pack/src/main/webapp/gadgets/Engagement-gadgets/ForumsStatistic/Statistic.xml