Merge pull request #289 from noels/master

Update APPSI glossary
Change glossary introduction text
Export glossary moderator role in dgu_glossary feature
Change glossary tabs style
Change default user image
Remove 'All Recent Comments' view from secondary tabs in 'Manage my content'
Cosmetic CSS tweak
Merge pull request #290 from ratajczak/master

glossary styling
Use target instead of srcElement - compatibility.
Merge pull request #291 from noels/fix_glossary_js

Use target instead of srcElement - compatibility.
Cosmetic CSS tweak
Merge branch 'master' of github.com:datagovuk/dgu_d7
Merge pull request #292 from ratajczak/master

Cosmetic CSS tweak
Export glossary subnav link in dgu_site feature
Merge pull request #293 from ratajczak/master

Export glossary subnav link in dgu_site feature
Better way of validating facebook and linkedin urls
Merge pull request #295 from ratajczak/master

Better way of validating facebook and linkedin urls
Add sample directory with sample database
Add sample apps to database
Update search index in default database