fixes #112 

Added tags cloud view to Explore OSB
Delete message related to OSB2014 workshop
#86 Added loading bar for tabs and left align in OSB Explorer page
#86 Change loading icon, now using osb logo
#86 Added summary for people, technology and groups tabs
#86 Better performance for OSB Explorer page
fixes #86 Tabs are loaded sequentially and if a new tab is selected it
is prioritized. Also, if a new page is requested ajax calls are stopped
#86 Added summary for projects too
Some minor fixes regarding tabs layouts and summaries.
Remove unuseful script
Fixed tabs load
Minor tweaks to pubmed info & explore page text
Merge remote-tracking branch 'origin/master' into docRefactor

Conflicts:
	app/views/projects/index.html.erb