Add primitive analytics for site search.
Added TODO note to move analytics out fo global scope.
Update license
Add limit to concurrent grunt task
Update databinding.md

Some of the mustache brackets aren't consistent, just a little change.
P.S. the same is also in the code snippets but i can't change them because they are PNG files.
Merge pull request #533 from arthurevans/search-analytics

Add primitive analytics for site search.
Update binding-types.md

Add missing space
Merge pull request #538 from vmarasow/patch-1

Update databinding.md
Update binding-types.md

Add missing space
Clear up clunky intro sentence in databinding-advanced

@arthurevans PTAL
Fix indentation typo

Fixed inconsistent indentation of div tags on lines 65 & 67
indentation typo

<paper-shadow z="3"> was indented one space should be two spaces
Update path for post-service
Merge pull request #544 from Yahkob/patch-3

indentation typo
Merge pull request #543 from Yahkob/patch-2

Fix indentation typo
Fix typo and call out two-way value prop on select element
Updated link for polymerchromeapp
Merge pull request #541 from robdodson/master

Clear up clunky intro sentence in databinding-advanced
Merge pull request #545 from PendragonDevelopment/patch-1

Update path for post-service