Merge pull request #137 from jpecht/master

added definitions / zoom icon tweak / removed twitter button
Merge pull request #138 from jpecht/master

dropdown re-styling
added arrows to menu items
added google analytics code, reorganized index.html, fixed social button styling
Merge branch 'master' of github.com:nikAleksandr/CIC
transition for social sharing buttons
filled in popup text for sharing icons
dropdown fixes
Merge remote-tracking branch 'upstream/master'

Conflicts:
	index.html